texashuntingforum.com logo
Main Menu
Advertisement
Affiliates
Advertisement
Newest Members
TraeMartin, Beatixre, MooseSteed, Trappernewt, casyoo
71987 Registered Users
Top Posters(All Time)
dogcatcher 110,788
bill oxner 91,416
SnakeWrangler 65,416
stxranchman 60,296
Gravytrain 46,950
RKHarm24 44,585
rifleman 44,461
Stub 43,769
Forum Statistics
Forums46
Topics537,009
Posts9,719,403
Members86,987
Most Online25,604
Feb 12th, 2024
Print Thread
5.56 reload ? #6330639 06/10/16 10:07 PM
Joined: Aug 2006
Posts: 11,655
C
colt45-90 Offline OP
Texas colt45
OP Offline
Texas colt45
C
Joined: Aug 2006
Posts: 11,655
never reloaded the 5.56, reading Patrick Sweeney, "it is usually necessary to crimp the bullet in place when loading for a semi auto", using a tapered crimp... is it necessary?


hold on Newt, we got a runaway
Re: 5.56 reload ? [Re: colt45-90] #6330690 06/10/16 11:10 PM
Joined: May 2014
Posts: 1,100
T
TackDriver Offline
Pro Tracker
Offline
Pro Tracker
T
Joined: May 2014
Posts: 1,100
As far as I know, semi automatic rifles use a crimp unlike bolt guns. But for some reloaders who use more than enough neck tension of over .002 don't crimp at all for semi auto rifles. But its best to crimp bullets without the cannelure and lightly crimp the bullets with the cannelure so the bullet won't move in the case for semi auto rifles.

Last edited by Big Stan; 06/10/16 11:30 PM.
Re: 5.56 reload ? [Re: colt45-90] #6330713 06/10/16 11:33 PM
Joined: Mar 2015
Posts: 1,851
B
Blackout Bill Offline
Pro Tracker
Offline
Pro Tracker
B
Joined: Mar 2015
Posts: 1,851
What Stan said. Smarter folks than me will eventually chime in but that works for me.

Re: 5.56 reload ? [Re: colt45-90] #6331057 06/11/16 01:04 PM
Joined: Aug 2011
Posts: 13,409
J
jdk1985 Offline
THF Celebrity
Offline
THF Celebrity
J
Joined: Aug 2011
Posts: 13,409
Neck tension can be sufficient. I still crimp mine just for peace of mind and it does not take me any more time.

Last edited by jdk1985; 06/11/16 01:05 PM.

Instagram @justinkingwoodworking
Re: 5.56 reload ? [Re: colt45-90] #6331271 06/11/16 05:09 PM
Joined: Nov 2007
Posts: 9,502
R
RiverRider Online Confused
THF Trophy Hunter
Online Confused
THF Trophy Hunter
R
Joined: Nov 2007
Posts: 9,502
Anyone ever done an experiment to see if bullets are pushed deeper into the neck during chambering? If so, what were the results?


[Linked Image]

"Arguing with you always makes me thirsty."

-Augustus McRae
Re: 5.56 reload ? [Re: colt45-90] #6331277 06/11/16 05:22 PM
Joined: Sep 2009
Posts: 18,907
C
ChadTRG42 Online Happy
THF Celebrity
Online Happy
THF Celebrity
C
Joined: Sep 2009
Posts: 18,907
Some of my 223 ammo I will not crimp. It just depends on the powder I'm using and how compressed the load is. The main worry on 223 ammo is the bullet moving deeper in the case during chambering in an AR rifle. This WILL increase your pressures, and could cause a problem. If you are running a compressed load with proper neck tension, the powder alone will keep the bullet from going deeper in the case. So no crimp is needed.

Also, adding a roll crimp or taper crimp can vary your neck tension on brass that has different case neck lengths (like when using mixed head stamp brass, or brass fired multiple times vs. other brass not fired multiple times). This will cause the rounds to not be the same effecting accuracy.

When I do crimp, I use a Lee crimping die, since it squeezes the neck, and does not matter on case neck lengths.


[Linked Image]
Custom and Precision Ammunition!!
https://DallasReloads.com/
Type 01 and Type 06 FFL
Re: 5.56 reload ? [Re: RiverRider] #6331281 06/11/16 05:23 PM
Joined: Dec 2008
Posts: 41,083
J.G. Online Content
THF Celebrity
Online Content
THF Celebrity
Joined: Dec 2008
Posts: 41,083
Friend of mine has a DPMS chambered in .260 Rem. Without a crimp, the first round chambered, the bullet would lurch forward. Exactly the opposite of what we expected. He applies a light taper crimp now.


[Linked Image]
800 Yard Steel Range
Precision Rifle Instruction
Memberships and Classes Available
Re: 5.56 reload ? [Re: J.G.] #6331286 06/11/16 05:26 PM
Joined: Sep 2009
Posts: 18,907
C
ChadTRG42 Online Happy
THF Celebrity
Online Happy
THF Celebrity
C
Joined: Sep 2009
Posts: 18,907
Originally Posted By: FiremanJG
Friend of mine has a DPMS chambered in .260 Rem. Without a crimp, the first round chambered, the bullet would lurch forward. Exactly the opposite of what we expected. He applies a light taper crimp now.


That's the other worry, is the bullet moving forward at the sudden stop during chambering. If a round has adequate neck tension, it shouldn't move forward during chambering. But to give more tension, crimping is the answer.


[Linked Image]
Custom and Precision Ammunition!!
https://DallasReloads.com/
Type 01 and Type 06 FFL
Re: 5.56 reload ? [Re: ChadTRG42] #6331302 06/11/16 05:39 PM
Joined: Dec 2008
Posts: 41,083
J.G. Online Content
THF Celebrity
Online Content
THF Celebrity
Joined: Dec 2008
Posts: 41,083
Yes, as hard as ARs chamber, and the sudden stop, is what we figured.

One more reason I like my bolt actions better. ARs are a necessary tool for the tool box, and I have two. But I look at them like they're female rifles. They can be high maintenance.


[Linked Image]
800 Yard Steel Range
Precision Rifle Instruction
Memberships and Classes Available
Re: 5.56 reload ? [Re: J.G.] #6331309 06/11/16 05:43 PM
Joined: Dec 2009
Posts: 5,431
B
Big Fitz Online Content
THF Trophy Hunter
Online Content
THF Trophy Hunter
B
Joined: Dec 2009
Posts: 5,431
Originally Posted By: FiremanJG
But I look at them like they're female rifles. They can be high maintenance.


lizard I like females! rofl


Originally Posted by onlysmith&wesson
I was wrong...on anything technical.

Originally Posted by Sailor
Fitz............. is right, ya know............
Re: 5.56 reload ? [Re: Big Fitz] #6331463 06/11/16 09:23 PM
Joined: Dec 2008
Posts: 41,083
J.G. Online Content
THF Celebrity
Online Content
THF Celebrity
Joined: Dec 2008
Posts: 41,083
Originally Posted By: Big Fitz
Originally Posted By: FiremanJG
But I look at them like they're female rifles. They can be high maintenance.


lizard I like females! rofl


Evidently I do too. Wife, two daughters, both dogs are female, one outside cat that's female. hammer


[Linked Image]
800 Yard Steel Range
Precision Rifle Instruction
Memberships and Classes Available
Re: 5.56 reload ? [Re: ChadTRG42] #6331523 06/11/16 10:27 PM
Joined: Aug 2006
Posts: 11,655
C
colt45-90 Offline OP
Texas colt45
OP Offline
Texas colt45
C
Joined: Aug 2006
Posts: 11,655
Originally Posted By: ChadTRG42
Some of my 223 ammo I will not crimp. It just depends on the powder I'm using and how compressed the load is. The main worry on 223 ammo is the bullet moving deeper in the case during chambering in an AR rifle. This WILL increase your pressures, and could cause a problem. If you are running a compressed load with proper neck tension, the powder alone will keep the bullet from going deeper in the case. So no crimp is needed.

Also, adding a roll crimp or taper crimp can vary your neck tension on brass that has different case neck lengths (like when using mixed head stamp brass, or brass fired multiple times vs. other brass not fired multiple times). This will cause the rounds to not be the same effecting accuracy.

When I do crimp, I use a Lee crimping die, since it squeezes the neck, and does not matter on case neck lengths.
thanks


hold on Newt, we got a runaway
Re: 5.56 reload ? [Re: J.G.] #6331820 06/12/16 03:19 AM
Joined: May 2014
Posts: 1,100
T
TackDriver Offline
Pro Tracker
Offline
Pro Tracker
T
Joined: May 2014
Posts: 1,100
Originally Posted By: FiremanJG
Originally Posted By: Big Fitz
Originally Posted By: FiremanJG
But I look at them like they're female rifles. They can be high maintenance.


lizard I like females! rofl


Evidently I do too. Wife, two daughters, both dogs are female, one outside cat that's female. hammer


Exactly what I have at home except the kitty.

Re: 5.56 reload ? [Re: TackDriver] #6332420 06/12/16 07:22 PM
Joined: Jun 2011
Posts: 321
W
wrknonit Offline
Bird Dog
Offline
Bird Dog
W
Joined: Jun 2011
Posts: 321
I always crimp on any type of service rifle or civilian semi auto; just in case. I love the Lee factory crimp dies for this.

As far as females; Wife, daughter mother, mother-in-law, grandmother-in law, sister, niece. I am drowning in the Estrogen Ocean.
texas


always room for another buddy!



Re: 5.56 reload ? [Re: colt45-90] #6333033 06/13/16 03:01 AM
Joined: Aug 2011
Posts: 6,168
T
Tactical Cowboy Online Content
THF Trophy Hunter
Online Content
THF Trophy Hunter
T
Joined: Aug 2011
Posts: 6,168
I crimp everything.


The secret to a long life is to try not to shorten it.
Re: 5.56 reload ? [Re: colt45-90] #6333099 06/13/16 04:03 AM
Joined: Dec 2010
Posts: 1,482
B
Blanco Offline
Pro Tracker
Offline
Pro Tracker
B
Joined: Dec 2010
Posts: 1,482
I like many of you use the Lee crimp die. In most cases I adjust the die so it just kisses the neck then turn it in just a bit more, maybe 1/8 ~ 1/4 turn. That is unless there is a cannelure, then they get just a bit more.


Confidence is going after a whale in a rowboat, and taking the tartar sauce with you!
https://highbrasssports.com



Re: 5.56 reload ? [Re: colt45-90] #6334274 06/14/16 02:34 AM
Joined: Sep 2008
Posts: 16,729
K
KC Online Content
THF Celebrity
Online Content
THF Celebrity
K
Joined: Sep 2008
Posts: 16,729
I don't crimp my .223 ammo, have always found neck tension sufficient. My unscientific test was to take 5 rds, label and measure them, then cycle them through my AR ten times, then measure them again. All 5 were exactly the same length at the end, and I found with that particular load that my groups opened up to about 1 1/4" when crimped.

Re: 5.56 reload ? [Re: KC] #6334432 06/14/16 11:59 AM
Joined: Jan 2009
Posts: 2,039
H
HicksHunter Offline
Veteran Tracker
Offline
Veteran Tracker
H
Joined: Jan 2009
Posts: 2,039
Originally Posted By: KC
I don't crimp my .223 ammo, have always found neck tension sufficient. My unscientific test was to take 5 rds, label and measure them, then cycle them through my AR ten times, then measure them again. All 5 were exactly the same length at the end, and I found with that particular load that my groups opened up to about 1 1/4" when crimped.


This is similar to my experience, albeit with 6.8 instead of 5.56.

When doing load development, I only add a significant crimp if neck tension isn't sufficient to hold the bullet in place during repeated chamberings. Just on a whim, I decided to crimp a few rounds from an established load, and found that the group went all over the place. This is probably because I'm essentially changing everything about how that powder load burns now and not specifically a problem with crimping, but it should serve as a reminder to everyone to work up your loads how you're going to shoot them.

Re: 5.56 reload ? [Re: colt45-90] #6337940 06/17/16 12:34 AM
Joined: Mar 2015
Posts: 94
C
Caliche Kid Offline
Outdoorsman
Offline
Outdoorsman
C
Joined: Mar 2015
Posts: 94
If the bullets have a cannelure, I consider crimping, but not always. If they are slick, I rely on neck tension and I check my dies to make sure the tension is strong. Watch out for case lube entering the neck and clean it out if necessary. Inspect old cases for cracks in the neck because that will loosen the tension. If you can easily push your bullets deeper when placing the point of the bullets against a table top, you have problems in a self loader.

Re: 5.56 reload ? [Re: colt45-90] #6338364 06/17/16 01:42 PM
Joined: Nov 2007
Posts: 603
A
ASIC777 Offline
Tracker
Offline
Tracker
A
Joined: Nov 2007
Posts: 603
I had an issue with soft points in an older AR without the M4 Feed Ramps. I thought it was the mag but it happened with multiple mags too. Bullets would occasionally hang up and push the bullet almost completely into the case. Powder would spill into the action.
Lee collet crimp or factory crimp as they call it now solved the problem. I use one on all .223, .308. and 30-30. Especially the 30-30, with its very thin brass it removed the problem of rolling the shoulder when trying to put on too much crimp. Its very adjustable for amount of crimp. Most of the time its just a simple little kiss and provides peace of mind. Several thousand rounds and no issues.


Lifetime NRA Member
Previous Thread
Index
Next Thread

© 2004-2024 OUTDOOR SITES NETWORK all rights reserved USA and Worldwide
Powered by UBB.threads™ PHP Forum Software 7.7.3