Do you crimp much? - 1911Forum
1911Forum
Advertise Here
Forum   Reviews   Rules   Legal   Site Supporters & Donations   Advertise


Go Back   1911Forum > >

Notices


Reply
 
Thread Tools Display Modes
  #1  
Old 02-08-2020, 12:45 PM
Colt1911a11 Colt1911a11 is offline
Member
 
Join Date: Jan 2012
Location: Central Ohio
Posts: 653
Do you crimp much?

All,
I just started reloading .308 and was curious if anyone taper crimps for rifle? My first test batch, I taper crimped about half of the loads. I didn’t really notice anything significant as far as accuracy or brass issues so on subsequent loadings I stopped crimping altogether. Any ideas or thoughts would be most helpful. Thank you.
Reply With Quote
  #2  
Old 02-08-2020, 01:12 PM
blindshooter blindshooter is offline
Member
 
Join Date: Jan 2013
Posts: 190
Nope.
__________________
Rifle Distinguished
Has been...
LR HM
NMC HM
Reply With Quote
  #3  
Old 02-08-2020, 01:36 PM
Tom Freeman's Avatar
Tom Freeman Tom Freeman is offline
More Cowbell...
 
Join Date: Jan 2001
Location: Colorado
Posts: 7,539
Bottleneck rifle, no. Not unless it is a heavy kicker like 375 H&H, 416 Rigby or 470 nitro.

Straightwall handgun like 9, 40, 45, ect, yes. Always.
__________________
I am a rather brilliant surgeon, perhaps I can help you with that hump…
Reply With Quote
Sponsored Links
Advertisement
 
  #4  
Old 02-08-2020, 02:33 PM
bmcgilvray bmcgilvray is offline
Member
 
Join Date: Mar 2019
Posts: 455
I don't even crimp the biggest rifles' cartridges I have on hand, the .375 H&H Magnum and the straight-walled .405 Winchester. Certainly not the .308 which is fed to an M1A.

Handgun rounds? Yes, but I don't crimp the hooey out of those either, not even the Magnums and automatic pistol cartridges.
Reply With Quote
  #5  
Old 02-08-2020, 04:24 PM
jjfitch jjfitch is offline
Senior Member
 
Join Date: Apr 2007
Location: Pacific Northwest
Posts: 6,226
I use the dimensions found in the SAAMI specs. That being said, bullet diameter can throw that off a bit say +/- .001, .002 in some cases.

Standing near shooters as an R/O I can see rounds leaving guns and entering targets. Over-crimping leads to separated jackets and sometimes "keyholing".

Under-crimping can lead to bullets being seated into cases during feeding, some say possibly causing overpressure.

Rather than saying I'm crimping I'd rather say I'm restoring the proper neck tension. The exception is as stated above IE. Magnum Revolver!

All the best,
__________________
John, Retired LEO, CA POST Certified Firearms Instructor, NRA Endmt., NRA Instructor, NRA RSO, Blue Lives Matter
Gun Control: Acquire target, align sights, press trigger, only after you have identified your target and what is beyond it and made the decision to shoot!
Reply With Quote
  #6  
Old 02-09-2020, 08:14 AM
Nitro.45 Nitro.45 is offline
Senior Member
 
Join Date: Dec 2015
Posts: 6,896
Quote:
Originally Posted by bmcgilvray View Post
I don't even crimp the biggest rifles' cartridges I have on hand, the .375 H&H Magnum and the straight-walled .405 Winchester. Certainly not the .308 which is fed to an M1A.

Handgun rounds? Yes, but I don't crimp the hooey out of those either, not even the Magnums and automatic pistol cartridges.
Well, one thing is for sure. I crimp the “hooey” out of hot 357 that are being tube fed through the Henry! Same goes for the Deagle!
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 04:48 AM.


NOTICE TO USERS OF THIS SITE: By continuing to use this site, you certify that you have read and agree to abide by the Legal Terms of Use. All information, data, text or other materials ("Content") posted to this site by any users are the sole responsibility of those users. 1911Forum does not guarantee the accuracy, integrity, or quality of such Content.

Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Search Engine Optimisation provided by DragonByte SEO (Lite) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
Copyright 2015 1911Forum.com, LLC. All Rights Reserved