Brass too short.
04-11-2009 | 12:25 PM
#1
Thread Starter
Fork Horn
Joined: Feb 2009
Posts: 308
Likes: 0
From: Lake Tahoe
Brass too short.
So I measureda factory, unfired, 30.06 Remington case that was loaded and got 2.4760. So, I trimmed my cases to 2.4760. NOW, for S&Gs I decided to look it up online. Well max length is 2.49 and minimum is 2.48. So the internet says. Did I just destroy 20 cases? I know they will stretch after they are fired but.......is a .004 difference too short? Hope I dont annoy anybody with my elementary questions. Thanks.
04-11-2009 | 03:55 PM
#2
Nontypical Buck
Joined: Feb 2003
Posts: 3,802
Likes: 0
From: Coralville, IA. USA
RE: Brass too short.
0.004" won't hurt anything. The most important thing, accuracy wise, is that the brass is trimmed to the same length.
I shoot 7mm Rem Mag brass resized and fireformed into 257 Weatherby Mag with no problems and excellent accuracy. The 7mm Rem Mag brass is 2.500" max length, with the trim-to length 2.490". The 257 Weatherby Mag max case length is 2.549", with the trim-to length 2.539". When the 7mm Rem Mag is necked down in (minimally) fireformed, the cases are roughly 0.04" shorter in the neck than Weatherby cases and specs. If you compare them side-by-side, the reformed 7mm Rem Mag brass are noticeably shorter in the neck (the 257 Wby has a long case neck, however). My rifle shot the resized 7mm Rem Mag brass into consistant 3/4 MOA groups during fireforming. So no, the small difference doesn't really matter, as long as they are not over the max case length spec, and they are trimmed to a uniform length.
Mike
I shoot 7mm Rem Mag brass resized and fireformed into 257 Weatherby Mag with no problems and excellent accuracy. The 7mm Rem Mag brass is 2.500" max length, with the trim-to length 2.490". The 257 Weatherby Mag max case length is 2.549", with the trim-to length 2.539". When the 7mm Rem Mag is necked down in (minimally) fireformed, the cases are roughly 0.04" shorter in the neck than Weatherby cases and specs. If you compare them side-by-side, the reformed 7mm Rem Mag brass are noticeably shorter in the neck (the 257 Wby has a long case neck, however). My rifle shot the resized 7mm Rem Mag brass into consistant 3/4 MOA groups during fireforming. So no, the small difference doesn't really matter, as long as they are not over the max case length spec, and they are trimmed to a uniform length.
Mike
04-11-2009 | 07:31 PM
#4
Thread Starter
Fork Horn
Joined: Feb 2009
Posts: 308
Likes: 0
From: Lake Tahoe
RE: Brass too short.
Thanks. I was sweating a bit i must admit. bronko, you the same one from the BP section? This site is great. Honest answeres and great comments. I should have been here years ago.
04-12-2009 | 06:35 AM
#5
Giant Nontypical
Joined: Feb 2003
Posts: 6,270
Likes: 0
From: Texas - BUT NOW in Madison County, NY
RE: Brass too short.
ORIGINAL: driftrider
0.004" won't hurt anything. The most important thing, accuracy wise, is that the brass is trimmed to the same length.
I shoot 7mm Rem Mag brass resized and fireformed into 257 Weatherby Mag with no problems and excellent accuracy. The 7mm Rem Mag brass is 2.500" max length, with the trim-to length 2.490". The 257 Weatherby Mag max case length is 2.549", with the trim-to length 2.539". When the 7mm Rem Mag is necked down in (minimally) fireformed, the cases are roughly 0.04" shorter in the neck than Weatherby cases and specs. If you compare them side-by-side, the reformed 7mm Rem Mag brass are noticeably shorter in the neck (the 257 Wby has a long case neck, however). My rifle shot the resized 7mm Rem Mag brass into consistant 3/4 MOA groups during fireforming. So no, the small difference doesn't really matter, as long as they are not over the max case length spec, and they are trimmed to a uniform length.
Mike
0.004" won't hurt anything. The most important thing, accuracy wise, is that the brass is trimmed to the same length.
I shoot 7mm Rem Mag brass resized and fireformed into 257 Weatherby Mag with no problems and excellent accuracy. The 7mm Rem Mag brass is 2.500" max length, with the trim-to length 2.490". The 257 Weatherby Mag max case length is 2.549", with the trim-to length 2.539". When the 7mm Rem Mag is necked down in (minimally) fireformed, the cases are roughly 0.04" shorter in the neck than Weatherby cases and specs. If you compare them side-by-side, the reformed 7mm Rem Mag brass are noticeably shorter in the neck (the 257 Wby has a long case neck, however). My rifle shot the resized 7mm Rem Mag brass into consistant 3/4 MOA groups during fireforming. So no, the small difference doesn't really matter, as long as they are not over the max case length spec, and they are trimmed to a uniform length.
Mike
s when it gets too long that problems occur.
04-14-2009 | 02:00 PM
#6
Thread Starter
Fork Horn
Joined: Feb 2009
Posts: 308
Likes: 0
From: Lake Tahoe
RE: Brass too short.
Yup, brass is just fine. This is my second lot of reloads and I should have started reloading a long time ago. The Benchmark shoots just fine and its not as dirty as H4895. Zero @ 100yds, tac driver. 200yds, its opens up to about 1 3/4" groups. 300yds, it was kind tough cuz by the time I had worked up to 300yds, the wind came about. Still, 6" low, 6" to the left and still had a 2 1/2" pattern. I never got that out of factory loads. I was thinking about upgrading my Savage 30.06 to a Remington 700 but after this performance, why? Somy Savage isa bit banged up but it still shoots great. Maybe a new stock.
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