Armory Sponsor
Posted: 12/16/2014 8:06:08 PM EDT
| Reload 5.56mm with regular primers? I am new to 5.56, but not to reloading. Do I need the CCI 41 primers? Have any of you ever had a slam fire with commercial ammunition or primers? |
|
Unless you have a firing pin problem (too long,bent,won't retract) then you can use any small rifle primer you want.
My 556 loads have seen CCI,Remington,Federal Match,Mostly winchester. Problem is you have to rework your loads with most primer changes as you are working at the upper pressure limit. So use what ever primer you have the most of or are going to get..... Most folks will stay with military type CCI primers,if you can get a lot of these. With a 556 or Wyle chamber you should have no problems. Later John |
|
CCI 450's have thicker cups than the 400, The Wolf 223 Magnum primers are good also, without the extra cost, and inventory scarcity of the #41's. Piercing can also be a concern with some loads and some guns. I'd save yourself the headache, and not buy the primers that are the thinner cups.
|
|
Quoted: Reload 5.56mm with regular primers? I am new to 5.56, but not to reloading. Do I need the CCI 41 primers? Have any of you ever had a slam fire with commercial ammunition or primers? The secret is to seat primers .002 to .003 below flush. Some brass will need the primer pocket uniformed before this can be achieved.
|
|
Quoted:
I've used Standard small rifle primers from Winchester for the past 10 years on 5.56X45 rounds with 55 and 62 grain bullets using H335 powder and have never had any problems. I have used the same set-up for the last 10K or so rounds without any problems Winchester Small Rifle Primers and H335 or Surplus 844. |
|
I use Win SR and CCI 400 (SR) primers for my standard AR fodder and Remington 7½ (SRM) primers for my long range, precision loads in both my AR and son's Savage Model 10. 10s of thousands of rds without any issue, even back in the day when mag dumps were fun. Haven't used a single CCI 41 nor have I felt I needed any. |
|
As a general rule, small rifle magnum primers for ball powders, standard small rifle for stick powder.
One exception for me has been the CCI 400 small rifle primer, it doesn't do well on hot loads in my rifle. Starts to smear like butter on hot toast. Inspect your brass, toss any questionable pieces, seat primers sub flush, and you should be good to go. |
| I've used 5k of CCI400's that came with my 1050 (used) in plinking loads (25gr H335 over 55gr FMJ in range brass) without any problem. Now that they are gone, I have replaced with KVM-223M (cheaper and better IMHO), but nothing wrong with them if you already have them and aren't chasing max loads. |
|
Quoted: Why not 6 1/2? I use 7 1/2 which I know is different but why not 6 1/2? I've heard the issues with federal... Quoted: Quoted: All Small Rifle Primers will work Cept the Rem 6 1/2. Why not 6 1/2? I use 7 1/2 which I know is different but why not 6 1/2? I've heard the issues with federal... 6 1/2 will pierce with anything over a very light 223 load
|
|
Quoted:
Why not 6 1/2? I use 7 1/2 which I know is different but why not 6 1/2? I've heard the issues with federal... Quoted:
Quoted:
All Small Rifle Primers will work Cept the Rem 6 1/2. Why not 6 1/2? I use 7 1/2 which I know is different but why not 6 1/2? I've heard the issues with federal... Says so on the box! |
|
Quoted:
6 1/2 is for low pressure rounds like 30 Carbine, 22 Hornet. You want 7 1/2 for 223. 6 1/2 will pierce with anything over a very light 223 load Quoted:
Quoted:
Quoted:
All Small Rifle Primers will work Cept the Rem 6 1/2. Why not 6 1/2? I use 7 1/2 which I know is different but why not 6 1/2? I've heard the issues with federal... 6 1/2 will pierce with anything over a very light 223 load Good to know, thanks! |
| Read the 'warning' on the side of the box of Remington 6 1/2 primers. To the effect it states' not to be used for 5.56/223 high pressure loads'! I just got done reloading another 200 rounds for my AR using CCI 400 primers. I have used the CCI 400 for a lot of years and have not had any issues, yet! I do have some CCI 450 and CCI 41 primers, but they are a lot newer then the CCI 400's that I have. So I will use up the CCI 400's and when they are gone, I will switch over to one of the others. |
|
Don't ever use Remington 6 1/2 or Russian standard small rifle primers in .223. They are designed for .22 Hornet chamber pressures of around 40,000 psi max.
I avoid CCI-400's and Winchester standard small rifle primers. If you use these don't push them hard, light bullets with moderate powder charges should work fine. Actually the old nickel plated Winchester small rifle primers were may favorite for years. They were discontinued over ten years ago. The copper colored ones aren't as good as the old primers. Remington 7 1/2, CCI-450's, CCI-BR4's, CCI-41's, Russian kvb5,56m and Russian kvb223m (magnum) are all top notch when loaded in 5.56mm/.223 ammo. I haven't used any Federal small rifle primers so won't comment on their suitability. |
|
Quoted:
I have never used CCI 41's. Never needed them. Others would tell you they are a must. The secret is to seat primers .002 to .003 below flush. Some brass will need the primer pocket uniformed before this can be achieved. Quoted:
Quoted:
Reload 5.56mm with regular primers? I am new to 5.56, but not to reloading. Do I need the CCI 41 primers? Have any of you ever had a slam fire with commercial ammunition or primers? The secret is to seat primers .002 to .003 below flush. Some brass will need the primer pocket uniformed before this can be achieved. Pretty much this. My final inspection procedure has me running my finger over the case head to make sure the primer is below flush. Any that feel even or prouder go into the bolt gun box. |
Armory Sponsor