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Parsec
HB Pro Staff
| Joined: | 22 September 2007 |
| Location: | British Columbia Canada |
| Posts: | 89 |
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Posted: 30 March 2008 06:46 PM |
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| Is there any danger using rifle brass that's been trimmed 6 or 7 thousands too short (too short as per the reloading manual "trim" length)? There seems to be more than enough neck left over to seat the bullet?
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Oddbod
HB Full Member
| Joined: | 20 January 2008 |
| Location: | United Kingdom |
| Posts: | 64 |
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Posted: 30 March 2008 06:59 PM |
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I've shot a fair amount of .270Win loaded in cases that were inadvetently trimmed .005" under the "trim to" length & had no issues.
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72coupe
Handloading Master
| Joined: | 11 June 2006 |
| Location: | Iowa Park, Texas USA |
| Posts: | 1461 |
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Posted: 30 March 2008 07:37 PM |
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| No!
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Reloader since 1969.
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Paul Tummers
HB Life Member
| Joined: | 18 June 2007 |
| Location: | Berg En Terblijt, Netherlands |
| Posts: | 327 |
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Posted: 30 March 2008 09:09 PM |
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If I load some ammo for somebody else, I always make sure, the cases are somewhat shorter than the manuals tell me because I don't know his rifle and/or cleaning habits.
This way I am fairly sure there will be no pressure issue because of too long cases.
Paul.
____________________
There almost always is a way to do things better, more often than not by simplifying.
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saddlesore
addicted handloader
| Joined: | 6 February 2005 |
| Location: | Colorado Springs, Colorado USA |
| Posts: | 474 |
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Posted: 31 March 2008 03:01 PM |
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| It is not unusual from me to trim .010 shoter than manuals call for. Having them al lthe same is more important, but even a few thousandths isn't going to cause a wide drift in neck tension on the bullet unles you are setting the bullet way, way, out thre
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Charley
Administrator
| Joined: | 9 September 2005 |
| Location: | San Antonio, Texas USA |
| Posts: | 2205 |
| Photo: | | | Are you a handloader?: | Yes | | Favorite type of cartridge to load?: | I load everything! |
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Posted: 31 March 2008 09:28 PM |
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| Before I had one made, my handloads in 7.5x54 French were trimmed with a Lee length gauge for the 7.62x54, which was .020 short. No problems.
____________________
"You all can go to Hell, I'm going to Texas" David Crockett (and probably George Bush)
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ryalred
HB Full Member
| Joined: | 12 May 2008 |
| Location: | SE, Oklahoma USA |
| Posts: | 36 |
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Posted: 14 May 2008 04:06 PM |
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| Should be no problem. If you can seat the bullet deep enough for a sound mechanical fit (about one caliber), you shouldn't have any problems.
____________________
I'm sane and the rest of the world is crazy!
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wheezengeezer
addicted handloader
| Joined: | 16 July 2007 |
| Location: | Jeddediah Jones Swamp, Kansas USA |
| Posts: | 605 |
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Posted: 14 May 2008 04:10 PM |
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| i have used 270 made from 30/06,about .050 shorter.no issues whatsoever.but if cases are too long and jamming into the front of the chamber it is a whole different issue. short=safe
____________________
I was raised in the 50's on gunpowder and jackrabbits.salt and pepper wooda made'em taste better
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SCSlim
HB Life Member
| Joined: | 2 May 2008 |
| Location: | Boise, Idaho USA |
| Posts: | 153 |
| Photo: | [Download] | | Are you a handloader?: | Yes | | Favorite type of cartridge to load?: | I load everything! |
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Posted: 15 May 2008 06:58 PM |
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I'd have to join the consensus on this issue. It's one of life's quirky mysteries in a world wherein we receive dozens of spam e-mails each day droning on and on about how great it is to make things ... well, longer ... when considering case neck length, a little shorter is safer than a little too long. Apart from difficult chambering, pressures can rise to potentially dangerous levels when the case necks are too long. Case head separations can and do occur under such conditions, and it's quite an operation to get the rest of the case out of the chamber when it separates at the web. Had that happen once with a 7.62x39 handload in an SKS, although I don't know that case length was the issue there. Could have been an incipient separation that I missed on inspection.
The "trim to" recommendations are, in my experience, pretty hard to hit exactly, at least with the rotary trimmer I have. They almost always come out a thousandth or two or three shorter than the specs - I just can't seem to hit the sweet spot with that blasted trimmer. But I've never seen any indication of a problem with brass that's a couple thousandths too short.
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Ride hard, shoot straight, and always speak the truth.
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WILDCATT
HB Pro Staff
| Joined: | 11 September 2007 |
| Location: | South Carolina USA |
| Posts: | 59 |
| Photo: | | | Are you a handloader?: | Yes | | Favorite type of cartridge to load?: | I load everything! |
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Posted: 16 May 2008 08:18 PM |
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SCSLIM:himmm longer huh.I am making 43 mauser out of 45/70 and they will be way short.I wont worry as long as the sholder is there.onec had a friend shoot my jungle carbine using 303 savage I still have the cases.nothing happened but "o my god what was that"you can get away with alot as long as you know whats really dangeous.
rechamber a jap 6.5 to 30/06 and fire it kill 7 deer and complain the kick was terible.the gun smith almost lost it when he saw the 6.5 bore.the NRA ended up with it.  
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wheezengeezer
addicted handloader
| Joined: | 16 July 2007 |
| Location: | Jeddediah Jones Swamp, Kansas USA |
| Posts: | 605 |
| Photo: | | | Are you a handloader?: | Yes | | Favorite type of cartridge to load?: | pistol |
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Posted: 24 May 2008 03:07 PM |
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guess some bozo with a reamer didnt know the diff in the 2 jap calibers!!308 to 264 is a heluva squeeze. says a lot for the action.
____________________
I was raised in the 50's on gunpowder and jackrabbits.salt and pepper wooda made'em taste better
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