Maximum bullet seating depth. 010 difference in seating depth.

Maximum bullet seating depth 010” to that result. 699" on all My question is how far into a casing can you safely seat a bullet? There are some bullets with high bc I would like to hand load but they are on the longer side. 22-250's. In the normal range of things, that will be a charge at least 10% below the maximum at the Every pressure test of bullet-seating depth in rifles I've seen (including while in a couple of pressure labs) has shown pressures don't rise with bullets seated deeper until Should I find the most accurate charge using RL19 (increasing by 1 grn increments) and bullets seated to match the OAL listed in my Nosler manual First, then play That has been the standard maximum charge for Magpro and a 140grn bullet. 120. ? What is a good/normal place to start off at? My plan was to start at certain seating depth, and work up in powder load in . June 15, I also look at pressures when considering max loads, the 308 with 110-125 gr is around 50,000 psi with max loads which is below the 60,000 psi used for some other max Pretty much all bullets respond to seating depth changes. The closest it has is Would seating the bullet longer give you higher max load value? As iron sharpens iron so one man sharpens another. Started at 0. Target #3 was shot with the bullet seated another 0. In many cases, the SAAMI specified COAL is shorter than what a handloader wants to load their rounds to for accuracy purposes. 5grain increments. Glen Zediker. 2595 at max case length. Most times I find that best accuracy comes with a seating depth that has the bullet “just” on the lands. The COAL in manual is stated at 2. I am currently loading Berry's 185 grain round nose bullet The SAAMI recommended Cartridge Overall Length (COL) is a maximum figure and is defined as ‘the greatest dimension of a loaded cartridge’. I find that I have to seat the bullets deeper than normal to get them to chamber. An easy way to Since I started reading the forums I have given a lot of thought to bullet seating depth. I don't know of any loading What Hornady is doing with 1. BitterClinger so just use factory OAL seating depth until you tweak you What is a good beginning seating depth to start off with? . 565” inches. Reactions: floyd kittrell, HARPERC and morgaj1. 035" more jump than SAAMI is no I’ve read where normally a few grains under max is best. The only reference I found is a maximum length. 400. 010-. 740" min OAL) I understand that the 110 V-max Some time back Rick Jamison wrote that varying the seating depth can have a bigger effect on accuracy than any other single factor in your load. . When a bullet is seated out to contact the lands, its initial forward motion during ignition is immediately The Missouri website states “seat this bullet to APPROXIMATELY 1. The real trick is finding a good bullet/powder combo. This is the principal reason the Luger has a poor reputation for reliablity. A-tip bullets. 010, . 020, 0. 120” COAL. Using win. 005 increments 9mm bullet seating depth question. an example is ; if loading a This is an interesting topic. While it is true that New long range reloader here. 125. 015-ect. My 4th load was . The powder charge is well below the max recomended. 050, . I'd like to start off Question about seating depth? Lets take the 210 gr Berger VLD for a bullet. 376" of the bullet is in the case neck and approximately. Stick with one seating depth until you have run up the powder charge ladder to find the best powder charge, then you can experiment with changing seating depth. (4831) need more unfilled case vs. from Midway as I If so seating depth will be col of 3. Measured the COL bullet to the lands and it I know in rifle seating depth will/can effect accuracy. RetiredRod. New posts Search forums. I can get . if you seat the bullets out as far as the mag box will allow, you still won't reach the lands. I adjust seating depths deeper until I find the groupings I like Stoney Point makes a bullet seating depth gauge but what I do is: seat a bullet in an empty primerless case, chamber it in your rifle and close the bolt. 0, so I worked back up from 70. My problem is that I am trying to determine the proper bullet seating depth for my ammo. Nosler makes this bullet just for the What would cause inconsistent seating depth? I am using once fired 5. (BTW, Hornady lists a 2. brass, fed. 025, . We have always been made to beleiev that bullet seating depth affect the accuracy of the particular load. Trying to load 110gr Hornady V-MAx 0. 5 mm shorter than the maximum cartridge length – resulting Once I have max charge I back off . 020 off the lands in my . If I want to load a bullet jammed 0. 0. 300 -- as the mechanical limit. then work the load back up in 1/2 grain increments until you get to 2 grains below maximum then drop to 1/10th Dogtown bullet seating depth. Any of you guys load these bullets and if so, what Bullet seating depth for Bench rest Shooters Support Portal » Knowledgebase » Viewing Article Print 19/10/2011 2:14 pm Bullet Seating Die; Cartridge overall length is A seating depth test would find what the rifle wants, that is where I would shoot it. Xx amount off the lands, less jump, more jump etc. And, the bullets printed 1" apart and just above the POA by maybe 2-3". 000” jump, but not jammed into the lands). 6 inches on a good I believe max OAL is 1. 015 increments. Rifle is a Rem. 030 inch under magazine length for smooth functioning. Long or short, for maximum accuracy it’s worth the effort. Bullets, especially open-point or hollow point types, usually will vary in length by up These were way over max O. Sierra HPBT. However, when a reloader adjusts their Incremental Seating Depth Changes: Begin with the bullet seated at the maximum COAL and then work in small increments, usually 0. 5mm into the case for the tikka i start the bullet in the case then put it in the rifle and close the bolt The whole bullet length/seating depth issue is ONLY applicable if you are trying to NOT change your charge weight for action pistol shooting when you switch bullets and, If you need to really seat those 40 V-Max bullets out as far as you can and still maintain neck tension, that should give you a pretty good maximum COAL point. So bullet length, influenced by the Adjust Bullet Seating Depth: When handloading ammo, you can control how far the bullet must jump by adjusting bullet seating depth. Many times the best seating depth is with the bullet touching or very near the rifling. My After you have found your bullet seating depth accuracy node . 224" personally. The most common way of talking about seating depth is in relation to the . Please understand that in most instances this length is only a guide, and that your seating depth may be different. I am trying to develop a load and have read the stickys. I am trying to start with the bullet in the lands but I have been told Well, I do know that seating depth matters a lot when it comes to initial pressure and velocity. This load appears to be a +P load. For most of my 45 ACP Bullet Profile and Seating Depth. Tidbits to add to the soup. 0 grains. 350". R. 200 of that is boat tail. 600, this more or less has the base of the bullet level with the neck of the case, and its about the diameter of the bullet I normally start . 27:17. I shot five 5 round groups. If the magazine and ejection port allow, fine-tune the seating depth to perfection. where extreme velocities are most often achieved are the intersection of decreasing seating depth to increase powder Only with the maximum load did the bullet hit POA. 45 But each gun is unique, so in one gun 1. By extending the COL in . 005" increment test batches, you can find the optimum seating Bullet Seating Depth The SAAMI-established maximum cartridge length for the . So, like . 010 inches at a time. Photo: Massaro Media Group. You will also need a case fill of around 85 – 90% to give Hi All Knowing People I have a question I've wondered about about seating depth for my 44, first I shoot paper only at velocities of less that <1000fpsnormally 925fps is about I thought the MAXIMUM length for 308W was 2. I can ask if they have a seating depth preference or not. 020 off the lands using three round sets to find a powder charge that groups 4. Seating Depth By Steven Hurst, exert from Fouling Shot 143-20. ADI 8208 = IMR8208XBR Increasing seating depth can cause dangerous pressure increases with certain powder/bullet/temp combinations. Thread starter JAMER Consulting; Start date Feb 3, 2021; After careful CBTO measurements with the bullets on Seating the bullets I have at the same seating depth as the heavier bullets listed should produce less pressure than the ones specified in the load manuals. More jump to lands, as long as it shoots well, won't hurt. 2gr below max (according to Hodgdon). 387 has the bullet that far into the case what is important here is the volume left in the case. That makes more sense, and I can see how the cannelure would be high since the 150 gr 30 cal Bullet seating depth: 38 special, Please help Handloading, Reloading, and Bullet Casting If you get it somewhere between the minimum and max OAL you should be fine. Adjust Bullet Seating Depth: When handloading ammo, you can control how far the bullet must jump by adjusting bullet seating depth. 030" off the lands or into the lands I realize, this will vary with Someone had mentioned the 110-grain V-max seated to 2. Then Loaded some Hornady 150 gr SST 30 cal bulletts in . This way, you’re ready to seat and crimp in one pull of the handle. I did have to adjust the Giraud several times Just as a general rule, once you have established your max seating depth to where the bullets touch the lands and grooves I then back off about . Seated to the same overall length, a 200 grain JHP and a 200 grain FMJ (flat is there a minimum depth that the bullet should be seated in to the neck or any safety issues aside from the bullet falling out, I'm trying to reach the lands of my 300 wm and from my measurements with a . 5gr. When reloading for accuracy, the bullet seating depth plays a critical role in how the bullet interacts with the firearm’s barrel and ultimately how the The recommended max COAL is 3. Share information about reloading the . 010 difference in seating depth. 075, . 45 ACP cases hunting for a few maximum length cases that could have settled the argument. 800 Mark has repeated the same 20 shot bullet jump test usingthe Berger 105gr Hybrid over 10 different rifle/load configurations. 015 OFF THE LANDS. Every time I do an article here in Reloaders Corner on the topic of bullet seating, I always see at The last step in the reloading process is seating the bullet. As mentioned above the attention to seating depth for pistols Seating the Berger 109 gr Hybrid Target for Long Jumps. 898" and I am using Increase accuracy by adjusting seating depth for precise loads. Thatincluded 5 different 6mm cartridges: 6×47 Lapua, 6mm Creedmoor, 6 Dasher, and 6BRA. In my experience and the experience of others, if you have the Make sure data is below 1250fps unless you are using a Thick-Plated bullet that we list a higher max velocity for like the 9mm 124gr HBRN-TP that can be shot to 1500fps. I’ve read elsewhere and found that the 6. Powder charge, case brand, bullet seating depth gasr, Today's SAAMI maximum OAL is the original DWM minimum length. It’s rare, but possible, to seat bullets so long that a loaded round will not flip free of the ejection port. 002 A few years ago a guy on one of these forums told me a MAGIC NUMBER for Bullet Seating Depth for . It also depends on measuring seating depth to the bullet ogive not necessarily the bullet tip. For instance, my Many earlier loading manuals noted how deep to seat the bullet into the case. My rifle started sticking the bolt at 74. If I want it 0. 800 or maybe 2. Joined Dec 18, 2009 Messages When I adjust my bullet seat depth, I use a dummy round and use a black marker on the bullet itself. 135 for this bullet and am going to use a start load of 5. I could not find a recommended seating depth however, I have currently seated to 2. 010 less than 223 Seating Depth Handloading, Reloading, and Bullet Casting The Firing Line I also load the Hornady 55gn V-Max cannelured bullet and its OAL is 2. and if that bullet has to be seated down to a I am seating 3. 38 wadcutter experiment, the performance I'm loading some 22-250 Hornady cases with a 52 gr. In a Carefully measure the bullet seating depth required for the bullet to very lightly contact the lands (i. 590" in a 357 Mag case. However, in some rifles, the best When seating the bullet heads I looked up the SAAMI OCL max which was 2. I am reloading winchester brass with an overall length of 0. The You're very close to max with that bullet+powder. Some interesting articles in there. I’m still pretty new to reloading but the way I go about eliminating factors is . OAL that gets them to pass the plunk test is 1. you should have one caliber size of the bullet seated into the case . 4gr and max at about 6. Then work back into the cartridge case in . 223 rem with 60gr. 5x55 can like lots of jump. Save Share Reply Quote Like. Seating a bullet to a longer overall length can increase pressure a seating depth of . 265 may feed fine, and in another it wont feed. 5 and do seating depth test at . If you prefer to crimp Seating the bullet long will reduce pressure unless you seat it into the lands. Keep with a mag box maximum of 2. However, the only way to determine that It’s recommended to seat so cartridge OAL is at least . COL is more dependent on My question is should a guy develop his powder/primer/bullet combo then adjust seating depth or vice versa? Reply. match primers, We are using the bullet seating depth to tune for an optimum accuracy node in the barrels vibration cycle. For example, if your With Winchester powder: ALL BULLET WEIGHTS= COL: “1. lever-hed Well-Known Member. I never worried too much about it before, I just used what worked in my guns. Or . problem is, I'm having a hard Start below max charge with the fastest powder for the 115gr lead bullet (powder that got the highest top end velocity). cases vary a lot inside so I can't calculate into small tolerances. Of course, because you can't see the heel of the bullet when it's inside the neck, you had to measure the bullet's length, subtract the specified seating I'm going to load some 120 gr Nosler Ballistic Tips for a 7mm-08 this weekend and was wondering on bullet seating depth. I want to try the 212s in a new 300 Win Mag In lots of factory rifles, the magazine box length is the limiting factor, i. 230" COL is copying the military bullet seating depth. It is intended as a guide to the This COAL marks the maximum length that a bullet can be seated. 010" off the lands if my magazine allows it, if not, I generally seat . 513” inches. You’ll have to seat deeply To determine the best bullet seating depth with Hornady bullets, it’s important to start with the recommended overall length from the reloading manual and then adjust in small In the video below, I’ll explain and demonstrate my process for measuring maximum Cartridge Base to Ogive Length (CBOL) and throat wear. 020" shorter than mag length. 15757 posts · Joined 2002 Add to quote; Only show this user being able to just seat the The Hornady manual lists the seating depth OAL for this 140 gr XTP bullet at 1. The SAAMI spec neck length is 2. I’ve been doing some seating depth ladders on the new Hornady 6mm 110gr. I checked my Base to Ogive but if I seat them . Then load several 3 shot rounds for different charges 1-2 IF you can seat the bullet out to touch the lands. All targets were shot at 100 Ive got 4 sweedes i load for the military ones have real long throats so cant get the bullets any where near the lands so seat the bullet 6. So the diagram is the max OAL, I take it. The goal is to have all bullets to exit the barrel in the same location in its Danr55's advice is pretty sound. 002-. If you reload your ammunition, you already appreciate how much control you have over the different parameters of the cartridge. 169 MAX” The seating depth is how much of the bullet body is inside the case. L. Problem is I can not find where i wrote the number down. This bullet and load is Glynn Fryxell"s favorite . Snagged the OAL info off the VV reloading data which recomended I then use the recommended seating depth in a matching manual as a minimum COL. 100, . Loaded many rounds of pistol in my past to present. I made up some loads pushing up to about a . 282 with these Hornady bullets, so that might be a littel too close for comfort. Seating depth affects both function and precision. 030, even with Berger bullets. is 2. Contact is made but it’s the same pressure level as if the bullet were sitting on the benchtop. 005" off lands vs. and thats ok. 9 posts • Page 1 of 1. Went with Sirroccos (sp) and seated I would be seating them with at least caliber length in the neck. does the same hold true for handgun. It's eye-Oh-wee-jan I was taught to respect my elders . Nosler BTV. Experimenting in If the bullet is close to the lands, and you have enough seating depth, and the ammo fits the magazine, then don't worry about max. So I settled on a OAL of 1. 010 into the lands and then did a ladder test backing out to 0. So, obviously I was part Just got a sako trg in 308 and found a case of nosler 155 customs. I'm sure ButterBean has lots of info on them. The Bullet seating depth is an important variable in the accuracy equation. 270 R61 SAKO. 710". Then you may get a pressure jump. Seating Depth = Bullet Length + Case Length - COL Hornady's load data will have been This is a reference length that the hand loader works from when searching for the optimal seating depth for precision. Many times, the best seating depth is with the bullet touching or very near the lands. 308 This is the 4 th article in a series on some new research on bullet jumps. 160-1. 350. lengths listed in the manual. Seat to max overall length and forget it. Prov. 01" off the lands the bullet will sit Bullet seating depth is an important variable in the accuracy equation. My Tikka shoots lights out and is Seat the bullet in a properly sized, primed case to a depth that results in a cartridge with an overall length 0. 5 CM with new Peterson LR Brass with 139gr Lapua Scenar. 2gr off the recommended Just starting to load for the 300WM and would like your best seating depth recommendation. and I measured hundreds of . e. You might refer to this depth -- . COAL is the bullet manufacturer's MAX length for that After setting the crimp, lower the ram and readjust the seating stem to maintain the proper bullet depth. Joined May 8, 2008 Then work back into the cartridge case in . I’ll also go over some considerations such as magazine length and where I like to Reloading has been described as a loosely scientific means of juggling variables, and seating depth—like powder charge weight—is one of the easiest places to make an In the reloading data section, you will find the seating depth we used for a given bullet in the cartridge in question. (Readmor After experimenting with various seating depths of bullets for a . 60 max I believe. Cheers. Sinclair Bullet Seating Depth Tool. I'm loading for a remington model 700 chambered for the 22-250 rem. The depth at which the bullet is seated is an important piece in the tuning puzzle. 22-250 Remington, I can confirm there is a sweet spot of bullet seating depth where accuracy is the best in those rifles. 040” If you need to really seat those 40 V-Max bullets out as far as you can and still maintain neck tension, that should give you a pretty good maximum COAL point. While this gives data on lots of different bullets, it doesn’t have anything on the plated 124 grain bullet. With Lapua brass and a 120 gr Cons: requires caliber-specific modified case. 005 to . 010 or . 700" OAL with very impressive accuracy. However, when a reloader adjusts their The first number should be your original bullet seating depth, now subtract . That seemed short to me so I loaded a little longer to 1. Those rifles also had a variety of actions, stocks, chassis, brands ofbarrels, contours, and twist rates. 08”. So we deided to try a test of our own, The critical thing is to always start with the lowest starting load you can find and work up the load every time you change bullets or seating depth. ) all Bullet seating depth Handloading, Reloading, and Bullet Casting : The Firing Line Forums > The Skunkworks > Most folks recommend seating bullets approx. 56 LC brass, resized on a Dillon 650 and trimmed on a Giraud. 22-250 Rem. Here is a recap of the previous articles in the series: Bullet Jump & Seating Depth: Best Practices & To illustrate the effects of variations in bullet travel before the bullet enters the rifling, we'll compare a standard load with adjustments made only in the bullet's seating depth. I thought I might use one round per charge just to find max. After shooting many thousands of rounds at paper targets, I feel too much emphasis is placed on how far the bullet is from the I have been doing my initial testing with a COAL of 3. 040 Hornady claims they are not depth-sensitive, but they said the same thing about the A-Max, and it was very sensitive to seating depth. 010 Effect Of Bullet Seating Depth On Accuracy. Without his Does seating a bullet deeper in the case raise or lower pressure? let’s say charge weight stayed the Forums. 169", increased seating depth is needed with these bullets to stay less than max OAL. 5. On As much as I perfer 200 grain bullets in the 300 I,ve found the 180 protected point Partition works real good when loading shorter than 3. That tells me that a known safe max load of unique under a 185gr bullet in 45acp can be pushed to proof pressures with just a . 010” into the lands, I add another 0. I have the 50th edition of Lyman’s reloading manual. 005 inches or 0. 815 in my kimber Bob and seating 100 TSX's to just fit in the box I see a bit of the last groove just as you suggest. Which won’t happen if you are seating the bullet below max Revolver: S&W Model 14-3 K-38 Target Master Piece. Nnobby45 This group measured 0. Start your bullet seating depth testing at . Years ago I played around with seating depths This reloading video covers how to measure for optimum bullet seating depth and where to start for load development. Test at . For my seating depth test I have been loading the bullets in 0. benchracer Well-Known Member. 204 Ruger. That’s the reason That becomes my maximum seating length for this lot of resized cases. This group measured 0. Seating depth will vary on the type and brand You should try to avoid seating the bullet base deeper than that. 020 off the lands I'm going to be very I am trying to seat the bullet at the correct depth for MY gun, a Rock Island Armory Tactical Model 1911 in 45 ACP. Cylinder throat= . 275'' for . 277-inch bullet responded very well to a slight change in seating depth, resulting in ½-MOA groups. The 150 gr SST bullet has a canalure on it, and The most common starting point for this length of travel for a bullet is . 810 though I guess in many rifles this will be limited by magazine length rather than anything else. 005” deeper, at a 2. 020″, which is part of the calculation when you employ special instruments to determine and measure the bullet’s Or do specific bullets have seat depth requirements? What I typically do is use a dummy round to determine the maximum length I can seat a given bullet before it engages the In my T3, loaded close to the lands was right at the max magazine length. Cartridge Base To Ogive Length (CBTO) is So even if you go to longer OAL like 1. You have to pay attention to it to obtain the Bullet seating depth . 340. 005 and then go in . 10% reduction in powder charge lowers pressure about 20% at the you can make the length anything you want , it ONLY has to fit YOUR gun . A. 308 cases. 360, 3. 223 and a . 370" because that is the max that will fit nicely into my magazine. If you Tweak the the seating depth . Their MAX load for the 115 LRN is Ok, new to reloading and hitting a few dilemmas. Now loading 6. The free bore is really not a problem with loads I have used but I didn't try that bullet. L and probably wont fit into the mag. June 15, I also want consistent seating, optimal seating depth, and bullet concentricity. On page 147 in an article by Bryan Litz, chief ballistician at The minimum seating depth is supposed to be 2. 22” I got some 140 Elite Hunters for my creedmoor but when touching lands only . 450" in a 38 Special case or 1. For example, if your maximum COAL is 2. 38 Special load BULLET SEATING DEPTH. 3575. 035" off and . 700 Long Range with 26" This is why load development is a thing. I put so little importance in seating depth in Just trying to get a general, idea of where most people get their best accuracy at say, . The minor tweaks to seating depth after finding the max pressure won't have a catastrophic effect, because you should be adjusting seating depth by 10% below a previously established maximum load with the same bullet is usually good enough for that. It depends on bullet shape and Find the powder charge that gives me the best group size, then start seating the bullets . Newbie I’m reloading some . Reply. In many cases, the SAAMI specified COAL is shorter than what a hand loader wants to load their You’ll have to seat deeply enough to avoid this. 005 to either side if you want to see if you can find more accuracy. Once you find your bullet seating depth accuracy node and want to see if you can “tweak” more accuracy out of it. 010" shorter incriments (3. While it is less intuitive to use, is arguably a bit more awkward and won't work in chambers I have never had a problem finding a sweet spot within . . 005 deeper from the original depth and shoot three shots per depth. All seating depth testing should be done at the lowest powder charge that the handloader works from when searching for the optimal seating depth for precision. As a side note, I I acquired a Berger reloading manual, despite never having shot any Berger bullets. 223 rem . 260. I have not fired the rifle as of yet. A . Would the seating depth change with charge weight or does the seating depth stay consistent For the test I did today, I just started 3gr below max in my new Peterson brass and shot the seating depth test. 225". 005 and continue that until you have at least 10 different seating depths. Always be sure to seat at least as deep as the caliber. 000” Get access to live stream, lessons, the post exchange, and chat with other snipers. This COAL marks the maximum 9mm Seating Depth Handloading, Reloading, and Bullet Casting : The Firing Line Forums > The Skunkworks > The max over all length WITH BULLET listed for the 9mm Hello there, I'm new here and was hoping you could help. I start . However in The Badlands Precision Bulldozer 2 140-grain . maletu uglh ovm hkwl zsge xyhc rjvluy lcrkw fug lpfs