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I'm reloading for a .22-250AI on a Mauser 98 action with a 1-12" Shillen barrel. To build a dummy round I'm chambering a bullet in a resized case. NO powder, NO primer. This measurement gives me 3.060" when measuered with a Sinclair Comparator from base to ogive WITH the comp. Total length would of course be minus the length of the comparator. My issue is this: When loading 10 thou (.010") off the land to ogive I'm pretty sure I'm getting way less than 100 thou of bullet into the neck. I'd estimate between 60-100 thou. I'm no rocket scientist, but I'm pretty sure it should be more. My question: How much of the bullet do I need pressed into the neck? Is 60-100 thou enough? Should I have double that?? Please don't suggest longer or heavier bullets. I've tried 50 and 55 grain bullets with NO luck. I'm trying to keep to the 36 gr and 40 gr bullets. Thanks Guys!! | ||
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Just my rule.....probably nobody else's Bullet dia into the case not counting the boat tail if it is such .224 = .224 min Just me ________________________________________________ Maker of The Frankenstud Sling Keeper Proudly made in the USA Acepting all forms of payment | |||
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Your throat is too long for optimal 40 grainers, but since you are already committed, go for it. It doesn't matter how little bullet shank you have in the case as long as it doesn't fall out during feeding. I have a long throated 257 that I load like a 25-06 and seat the bullets about 1/8th inch deep. Load and seat for accuracy. One other thing; seating bullets long will increase your case capacity and lower pressure and velocity so you can use more powder. Yes, a one caliber deep rule is good. But not locked in stone for any reason, as ted said. A .223 neck is only .190 long to start with anyway. Just try some and see how they work, feed and shoot. | |||
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I just measured my dummy round without the comp and I measure it at 2.486" which is .010" off the lands. My manual (Nosler #6) calls for a total length of 2.350". I know manuals are more like 'guide lines' and not really set in stone laws, but am I just going to be stuck with loading these shorter than I'd like?? | |||
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That depends upon your magazine length. Graybird "Make no mistake, it's not revenge he's after ... it's the reckoning." | |||
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Its a Mauser 98...bet I've got another 1/2" at least...maybe another 3/4" in mag length. | |||
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What TED said,has worked for me. | |||
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I try to load cup and core bullets .010" off the lands but if I have a long throated chamber in a rifle then I seat the bullet so that I have enough bullet base in the neck that I don't have to worry about it unseating under recoil, which is usually about a minimum of 3/16", but have had to seat deeper if the AOL it is limited by magazine length. A longer jump doesn't mean the rifle will be less accurate but usually does mean an accurate load may be somewhat harder to find. I have a Browning A-bolt II chambered in 308Win that has a very long bullet jump to the rifling and it is a tack driver. Dennis Life member NRA | |||
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My rule of thumb (+/-), at least one caliber deep. | |||
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Always been mine as well. Unless the neck is shorter than one caliber like the 300Wmag then I insure that I have at least full neck contact. As usual just my $.02 Paul K | |||
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True I forgot about the 300 WM and it's short neck ________________________________________________ Maker of The Frankenstud Sling Keeper Proudly made in the USA Acepting all forms of payment | |||
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Given the short neck and relatively high performance of the 300 win mag, I have always used that ratio and then cheated up just a smidge so I go with 87.5% of bullet diameter Mike Legistine actu quod scripsi? Never under estimate the internet community's ability to reply to your post with their personal rant about their tangentially related, single occurrence issue.  What I have learned on AR, since 2001: 1. The proper answer to: Where is the best place in town to get a steak dinner? is…You should go to Mel's Diner and get the fried chicken. 2. Big game animals can tell the difference between .015 of an inch in diameter, 15 grains of bullet weight, and 150 fps. 3. There is a difference in the performance of two identical projectiles launched at the same velocity if they came from different cartridges. 4. While a double rifle is the perfect DGR, every 375HH bolt gun needs to be modified to carry at least 5 down. 5. While a floor plate and detachable box magazine both use a mechanical latch, only the floor plate latch is reliable. Disregard the fact that every modern military rifle uses a detachable box magazine. 6. The Remington 700 is unreliable regardless of the fact it is the basis of the USMC M40 sniper rifle for 40+ years with no changes to the receiver or extractor and is the choice of more military and law enforcement sniper units than any other rifle. 7. PF actions are not suitable for a DGR and it is irrelevant that the M1, M14, M16, & AK47 which were designed for hunting men that can shoot back are all PF actions. 8. 95 deg F in Africa is different than 95 deg F in TX or CA and that is why you must worry about ammunition temperature in Africa (even though most safaris take place in winter) but not in TX or in CA. 9. The size of a ding in a gun's finish doesn't matter, what matters is whether it’s a safe ding or not. 10. 1 in a row is a trend, 2 in a row is statistically significant, and 3 in a row is an irrefutable fact. 11. Never buy a WSM or RCM cartridge for a safari rifle or your go to rifle in the USA because if they lose your ammo you can't find replacement ammo but don't worry 280 Rem, 338-06, 35 Whelen, and all Weatherby cartridges abound in Africa and back country stores. 12. A well hit animal can run 75 yds. in the open and suddenly drop with no initial blood trail, but the one I shot from 200 yds. away that ran 10 yds. and disappeared into a thicket and was not found was lost because the bullet penciled thru. I am 100% certain of this even though I have no physical evidence. 13. A 300 Win Mag is a 500 yard elk cartridge but a 308 Win is not a 300 yard elk cartridge even though the same bullet is travelling at the same velocity at those respective distances. | |||
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 I load a lot of 34gr. 22 cal. bullets in many rifles for different cartridges.I doubt if I push them into the neck more than .125", some less. Have had no trouble and accuracy, no matter distance to rifling, is just fine.  rogerOld age is a high price to pay for maturity!!! Some never pay and some pay and never reap the reward. Wisdom comes with age! Sometimes age comes alone.. | |||
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The one caliber rule is impossible in many cartridges (.223 is one example); and do not be concerned with "book" OALs either. If it fits your mag and your throat, use it, as long as your bullets don't fall out. | |||
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What he said. Just make sure you have enough neck tension and be careful they don't cant or fall out of the necks when you load them. I've cheated the 1 diameter rule too many times to count. Have gun- Will travel The value of a trophy is computed directly in terms of personal investment in its acquisition. Robert Ruark | |||
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This has been my method if getting to the lands was not an option. | |||
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I ignore that one caliber rule and concentrate on the distance to the rifling lands, and the mag length if applicable. The rule is meaningless; loading for accuracy is more important to me and I have found that distance to the rifling has more of an impact on it than seating engagement depth. Everyone has their own methods. | |||
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Good neck tension helps the powder burn correctly.  | |||
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I always questioned that; the rifling offers far more resistance than the case neck does and it hits the rifling pretty quickly. Now, in revolvers, and fast powders, yes it does. | |||
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