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Author Topic: lead bullet touching the rifling?  (Read 671 times)

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Offline anweis

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lead bullet touching the rifling?
« on: February 28, 2013, 09:34:46 AM »
Did i get this right? Seat jacketed bullets 0.010"-0.040" from rifling, but have lead gas sealed bullets touching the rifling? I am about to experiment with the lead non-jacketed bullets in a 7 x 57.
I have the Hornady COL seating gauge or whatever it's name. Thanks.     
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Offline Ranch13

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Re: lead bullet touching the rifling?
« Reply #1 on: February 28, 2013, 10:36:58 AM »
There really is nothing set in stone. Each rifle with different bullets and loads is going to make up it's own mind whether it prefers the bullets seated to the lands or not. Type of bullet doesn't matter, some will shoot better seated out some won't.
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Offline hornady

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Re: lead bullet touching the rifling?
« Reply #2 on: March 01, 2013, 04:52:18 AM »
Ranch pretty much nailed it. I have two old 7X57 Mausers, a 91 and a 95. I shoot mainly my Lyman cast bullets in. The 91 shoots great with the recommended COL, from the Lyman cast book, the 95 I needed to set the bullet out a little. 
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Offline wncchester

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Re: lead bullet touching the rifling?
« Reply #3 on: March 03, 2013, 03:07:01 PM »
"Did i get this right? Seat jacketed bullets 0.010"-0.040" from rifling, but have lead gas sealed bullets touching the rifling?"
 
You probably "got it right" but it's a lie.  I'm not sure what a 'lead gas sealed bullet' is but we would all like to posess the presumed 'secrets' of 'best' perfomance; tools, rifles, components, methods, etc.  Fact is, there are no such secrets or tools nor any preset 1-2-3 methods/steps = instant performance; experimentation is the only answer to finding your own best.
 
No one gives a "recommended" OAL for anything, what we see in the books is just what the book making team used in their own firearms and theirs isn't ours; experiment.
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Offline gary0529

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Re: lead bullet touching the rifling?
« Reply #4 on: March 05, 2013, 01:18:04 AM »
Maybe the OP means "gas checked" and does not know the term.

As to the question, the previous posters nailed it. There is no magic formula. Projectile hardness(high or low Brinell #), velocity, barrel condition, caliber and about 3000 other intangibles all go into determining an accurate and effective loading.

If you have not already been told, here it is again--Each gun is an entity unto itself" 
What works for me and mine may or may not be right for you.

Gary
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