Author Topic: Crimp Necessary for an AR? (Read 990 times)

Bill,SC · « **on:** May 04, 2011, 02:59:59 PM »

I am loading .243win for an AR10. I have good neck tension. Do I need to crimp? My worry is that the bullet might push into the case during feeding.

Lloyd Smale · « **Reply #1 on:** May 04, 2011, 03:02:28 PM »

ive loaded 10s of thosands of ar rounds and have never crimped a one.

huntducks · « **Reply #2 on:** May 04, 2011, 03:19:50 PM »

Me personally I crimp all autos that are mag fed...

Savage · « **Reply #3 on:** May 05, 2011, 01:33:04 AM »

Quote from: huntducks on May 04, 2011, 03:19:50 PM

Me personally I crimp all autos that are mag fed...

Same here.

Savage

1sourdough · « **Reply #4 on:** May 05, 2011, 01:35:58 AM »

I'd check your tension & try things 1st. Some case/bullet combinations can be a little loose, most likely not. I don't crimp in most situations. When I do it's usually with a Lee FCD.

DANNY-L · « **Reply #5 on:** May 05, 2011, 02:32:56 AM »

I increase neck tension by turning down the expander ball by .002-.003,I just got my ar but this process works for my mini's.

SHOOTALL · « **Reply #6 on:** May 05, 2011, 02:59:54 AM »

Quote from: Savage on May 05, 2011, 01:33:04 AM

Quote from: huntducks on May 04, 2011, 03:19:50 PM
Me personally I crimp all autos that are mag fed...

Same here.

Savage

+1

Reverend Recoil · « **Reply #7 on:** May 05, 2011, 04:13:45 AM »

I have loaded enough 223 Rem ammo to wear out three service rife match barrels. None of those cartridges were loaded with crimped bullets. If I were loading for a M249 SAW I would consider crimping the bullets.

EMC45 · « **Reply #8 on:** May 05, 2011, 05:47:17 AM »

No crimp here either. Loaded "a few" for ARs.

Bill,SC · « **Reply #9 on:** May 05, 2011, 05:51:47 AM »

Thanks for the feedback. I think I will try without the crimp.

Bill

res45 · « **Reply #10 on:** May 05, 2011, 01:49:43 PM »

Try it both ways using a light crimp with same load data. You will likely see a difference between the two loads and there affects on POI,accuracy and chrono data. In some case the crimped rds. in a particular rifle may shoot better they also may not but you want know to you test it in your rifle.

fastchicken · « **Reply #11 on:** May 05, 2011, 03:47:18 PM »

Quote

Quote from: huntducks on May 04, 2011, 03:19:50 PM
Me personally I crimp all autos that are mag fed...

I didn't know there were autos that weren't mag fed. I though those were called single shots

Unless you count a belt fed, which I think one would surely crimp for.

SHOOTALL · « **Reply #12 on:** May 06, 2011, 04:17:36 AM »

If you choose not to crimp it might be good pratice to not chamber the same round over and over. Like when hunting and moving from place to place where a loaded rifle is not allowed on the road.

Lloyd Smale · « **Reply #13 on:** May 07, 2011, 01:45:14 AM »

rugers 44 mag for one.

Quote from: fastchicken on May 05, 2011, 03:47:18 PM

Quote
Quote from: huntducks on May 04, 2011, 03:19:50 PM
Me personally I crimp all autos that are mag fed...

I didn't know there were autos that weren't mag fed. I though those were called single shots
Unless you count a belt fed, which I think one would surely crimp for.

fastchicken · « **Reply #14 on:** May 07, 2011, 05:03:39 AM »

You mean the Ruger with the rotary magazine?

I'm sure there are some tube fed centerfire autos as well, but what's an auto without some sort of magazine, tube or otherwise? But I don't have any auto's so I'll be quiet.

Savage · « **Reply #15 on:** May 08, 2011, 02:43:37 AM »

Ok, ok, so most autoloaders are mag fed, be it tubular or removable. Of course there's the M1 Garrand, (Clip Fed). To make the nit pickers happy, I'll revise my post to read: "I crimp any ammo that will be used in a magazine or clip fed firearm." It's worked for me for over 45yrs, not likely to change soon.

Savage

fastchicken · « **Reply #16 on:** May 08, 2011, 03:32:43 AM »

No nitpicking intended, just being facetious

Savage · « **Reply #17 on:** May 08, 2011, 10:39:29 AM »

And that's different how?

Quote from: fastchicken on May 08, 2011, 03:32:43 AM

No nitpicking intended, just being facetious

Savage

fastchicken · « **Reply #18 on:** May 08, 2011, 11:29:10 AM »

Well, since you asked, maybe an English lesson is in order. Facetious: meant to be humorous or funny, Nitpick: concerned with trivial details, two different things. I guess I was facetiously nitpicking, not just nitpicking. I could nitpick without trying to be funny, or be facetious without nitpicking. But since I have a monopoly on my brand of humor, I'll stop trying to be funny.
For what it's worth, I've shot uncrimped loads out of a full auto Colt M-4 with no problems, cycling wise, groups were a different story. All in fun, I'll stop.

Savage · « **Reply #19 on:** May 09, 2011, 01:32:31 PM »

Quote from: fastchicken on May 08, 2011, 11:29:10 AM

Well, since you asked, maybe an English lesson is in order. Facetious: meant to be humorous or funny, Nitpick: concerned with trivial details, two different things. I guess I was facetiously nitpicking, not just nitpicking. I could nitpick without trying to be funny, or be facetious without nitpicking. But since I have a monopoly on my brand of humor, I'll stop trying to be funny.
For what it's worth, I've shot uncrimped loads out of a full auto Colt M-4 with no problems, cycling wise, groups were a different story. All in fun, I'll stop.

Ok,---------got it now. Thanks for the clarification! Guess not many get my sense of humor either.

Savage