Comments on: Beginning to Load for the AR-15 (223 Remington) http://blog.sinclairintl.com/2009/03/26/beginning-to-load-for-the-ar-15-223-remington/ Sinclair International Precision Shooting Blog Mon, 02 Jan 2012 18:58:22 -0500 http://wordpress.org/?v=2.8.4 hourly 1 By: Jake Gibbs http://blog.sinclairintl.com/2009/03/26/beginning-to-load-for-the-ar-15-223-remington/comment-page-1/#comment-2547 Jake Gibbs Sat, 10 Jul 2010 17:11:24 +0000 http://blog.sinclairintl.com/?p=145#comment-2547 I have been using WSR primers in my newly acquired AR with no problems here in Southern Arizona summer heat. I also plan to use some CCI 400's. So far no slam fires. Haven't found the need to try magnum primers yet. Am still looking for that "perfect load". I have been using WSR primers in my newly acquired AR with no problems here in Southern Arizona summer heat. I also plan to use some CCI 400’s. So far no slam fires.
Haven’t found the need to try magnum primers yet. Am still looking for that “perfect load”.

]]> By: A. Widener http://blog.sinclairintl.com/2009/03/26/beginning-to-load-for-the-ar-15-223-remington/comment-page-1/#comment-2465 A. Widener Fri, 18 Jun 2010 19:33:02 +0000 http://blog.sinclairintl.com/?p=145#comment-2465 CCI #41 primers are great for the AR. They are brass and hardened to mil-spec. The second best AR primer is the Wolf small rifle magnum. The magnum nomenclature has nothing to do with heat of ignition, it heats the same as the WSR. Tye WSRM primers have a hardened brass cup like the CCI 41's. Rem 7 and a half beyond that. I also use CCI benchrest primers on long distance loads in a low capacity mag. Basically no rapid fire. CCI #41 primers are great for the AR. They are brass and hardened to mil-spec. The second best AR primer is the Wolf small rifle magnum. The magnum nomenclature has nothing to do with heat of ignition, it heats the same as the WSR. Tye WSRM primers have a hardened brass cup like the CCI 41’s. Rem 7 and a half beyond that. I also use CCI benchrest primers on long distance loads in a low capacity mag. Basically no rapid fire.

]]> By: Joel http://blog.sinclairintl.com/2009/03/26/beginning-to-load-for-the-ar-15-223-remington/comment-page-1/#comment-1078 Joel Thu, 18 Jun 2009 12:04:09 +0000 http://blog.sinclairintl.com/?p=145#comment-1078 I have a question about overall length. Given available bullets and chambers, can one load to magazine length without worrying about the jump being too short? Or, should one always measure jump before loading to magazine length? thanks. I have a question about overall length.

Given available bullets and chambers, can one load to magazine length without worrying about the jump being too short? Or, should one always measure jump before loading to magazine length?

thanks.

]]> By: dennis http://blog.sinclairintl.com/2009/03/26/beginning-to-load-for-the-ar-15-223-remington/comment-page-1/#comment-243 dennis Tue, 07 Apr 2009 17:00:49 +0000 http://blog.sinclairintl.com/?p=145#comment-243 any information for the <a href="http://www.sksstocks.com" rel="nofollow">sks rifles</a> ? any information for the sks rifles ?

]]> By: Ron N http://blog.sinclairintl.com/2009/03/26/beginning-to-load-for-the-ar-15-223-remington/comment-page-1/#comment-152 Ron N Sat, 04 Apr 2009 16:26:05 +0000 http://blog.sinclairintl.com/?p=145#comment-152 "The AR is not particularly finicky about primers. Winchester small rifle (WSR), Remington 7-1/2’s, Sellier & Bellot and Wolf small rifle primers are good and reasonably economically priced" I've read (and been told by reloaders) NOT to use WSR primers in AR15's as they are prone to slam-fires, and that CCI's are the preferred primer. Can anybody offer any comment? I will be loading for a Colt Sprtr Comp HBAR. “The AR is not particularly finicky about primers. Winchester small rifle (WSR), Remington 7-1/2’s, Sellier & Bellot and Wolf small rifle primers are good and reasonably economically priced” I’ve read (and been told by reloaders) NOT to use WSR primers in AR15’s as they are prone to slam-fires, and that CCI’s are the preferred primer. Can anybody offer any comment? I will be loading for a Colt Sprtr Comp HBAR.

]]> By: Shawn S http://blog.sinclairintl.com/2009/03/26/beginning-to-load-for-the-ar-15-223-remington/comment-page-1/#comment-120 Shawn S Thu, 02 Apr 2009 04:18:52 +0000 http://blog.sinclairintl.com/?p=145#comment-120 Not all 1:9 are the same I have colt that will stabalize the 69gr MK's and Hornady 75's and another 1:9 barrel on a CLE upper that will not shoot them into a 3" group at 100 yards but will shoot the Sierra 60gr varminter under an inch. Not all 1:9 are the same I have colt that will stabalize the 69gr MK’s and Hornady 75’s and another 1:9 barrel on a CLE upper that will not shoot them into a 3″ group at 100 yards but will shoot the Sierra 60gr varminter under an inch.

]]> By: Jeff Howard http://blog.sinclairintl.com/2009/03/26/beginning-to-load-for-the-ar-15-223-remington/comment-page-1/#comment-114 Jeff Howard Wed, 01 Apr 2009 01:23:13 +0000 http://blog.sinclairintl.com/?p=145#comment-114 A couple of things, I have had noticeable improvment with uniforming primer pockets, and deburing the inside flash hole. I also trim case length after each firing. I think shooters with a 1:9 twist barrel will find it stabalizes 69 gr match bullets very well and 75 gr Hornady non A-Max as well. I have competed with these bullets and had no problems at 200 and 300 yds with the 69's and 600 yds with the 75's. A couple of things, I have had noticeable improvment with uniforming primer pockets, and deburing the inside flash hole. I also trim case length after each firing. I think shooters with a 1:9 twist barrel will find it stabalizes 69 gr match bullets very well and 75 gr Hornady non A-Max as well. I have competed with these bullets and had no problems at 200 and 300 yds with the 69’s and 600 yds with the 75’s.

]]> By: RollerCam http://blog.sinclairintl.com/2009/03/26/beginning-to-load-for-the-ar-15-223-remington/comment-page-1/#comment-110 RollerCam Tue, 31 Mar 2009 01:32:39 +0000 http://blog.sinclairintl.com/?p=145#comment-110 If they don't uniform the primer-pocket depth, a new reloader is likely to see high primers. A Sinclair pocket uniformer is a must for top quality reloads. I never skip this step--- it's too important. If they don’t uniform the primer-pocket depth, a new reloader is likely to see high primers. A Sinclair pocket uniformer is a must for top quality reloads. I never skip this step— it’s too important.

]]> By: Bill http://blog.sinclairintl.com/2009/03/26/beginning-to-load-for-the-ar-15-223-remington/comment-page-1/#comment-109 Bill Mon, 30 Mar 2009 20:55:58 +0000 http://blog.sinclairintl.com/?p=145#comment-109 I would recommend checking the case length after each firing and re-sizing. If nececssary, trim to 0.010" below the maximum case length. As a general rule for rifle cases; discard them when they are ready for the fifth trimming. I would recommend checking the case length after each firing and re-sizing. If nececssary, trim to 0.010″ below the maximum case length. As a general rule for rifle cases; discard them when they are ready for the fifth trimming.

]]> By: Jason http://blog.sinclairintl.com/2009/03/26/beginning-to-load-for-the-ar-15-223-remington/comment-page-1/#comment-102 Jason Sat, 28 Mar 2009 01:40:20 +0000 http://blog.sinclairintl.com/?p=145#comment-102 Check case length after intial firing? I was taught to check case length after sizing and then trim-to? Bad information spread from you or did I learn wrong? Check case length after intial firing? I was taught to check case length after sizing and then trim-to? Bad information spread from you or did I learn wrong?

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