Hi Folks!
I'm just getting my toes in the water in Service Rifle at the tender age of almost 58. I've got most of the reloading equipment I think I need, and have read the loading manuals pretty thoroughly. I discovered Service Rifle after I bought my first AR-15 on a whim and promptly discovered that it was the wrong rifle for SR! (It's a DPMS Panther 16" carbine). Oh well, live and learn, and darn, had to buy another rifle!
My brand new Rock River NM A2 rifle just arrived after a 6 month wait and now I'm ready to start reloading for it. I'm very pleased with it. It's got a heavy stainless match barrel with Wylde chamber, 20" and 1:8 twist. So far I've only shot it once to get it close to dialed in, but only had 55 gr ammo ready to shoot.
I have some questions about the load development process. I've read the manuals, but would appreciate some feedback. Should I load just 10 at a time, shoot, examine the brass and load again? So far the brass I have is some once-fired Hornady .223 Rem, and a bunch of once-fired Lake City brass, both .223 and 5.56.
I'm unclear about the difference in load data between 223 Rem and 5.56. Do I use the 223 data or will that load be under-power? Would it be safe?
I feel pretty conservative, and will start at the minimum load data. I'm having trouble finding powder, so I have acquired 4 1lb bottles of Accurate 2200, one of 2460, and 1 of Varget. Likewise with primers. I have 100 Winchester SR, and 1000 CCI SR (I made sure they were not for magnum loads). I'd like to standardize on a powder but it's hard right now because it's so hard to come by. Any recommendations for sources, etc. would also be very helpful!
Having loaded shotshells for years, the primer and wad always made a big difference and one should not mix components.
Rifle reloading seems to be different as the primers are not listed with the powder, nor is the brass. I want to do this right, so any feedback about process would be much appreciated. Having a gun blow up would really ruin my day, not to mention the gun so I want to go about this the right way. IMHO, safety trumps everything.
Thanks for any feedback y'all may have!