five.five-six
Member
Working up a load for 55 FMJ's with WC844. I have procured 16 pounds lot # 041120
Rifle 20" RRA NM A2 HBAR
Chrono labradar
Projectiles are bulk 55 grain FMJ cannelure boat tail
Brass unfired Norma .223
Primer CCI 41
OAL 2.26
Crimp Lee factory
Starting charge 24.4
I read, it's just like H355 but nothing like it... I look up H355 in Lymans 47 and modern reloading 2nd, respectively for H355 55 FMJ's:
Start 23.0gn 2,617 FPS Max 26.5gn 2,967 FPS no pressure given
Start 23.0gn 2,940 FPS Max 25.3gn 3,203 FPS 52144 PSI
Modern reloading does have OAL listed at 2.200 which explained the massive pressure and Lymans puts OAL at 2.260, which I'm using.
All this is moot because this is NOT H355
Also, this is not canister grade powder so my results will only apply to lot# 041120
Rifle 20" RRA NM A2 HBAR
Chrono labradar
Projectiles are bulk 55 grain FMJ cannelure boat tail
Brass unfired Norma .223
Primer CCI 41
OAL 2.26
Crimp Lee factory
Starting charge 24.4
I read, it's just like H355 but nothing like it... I look up H355 in Lymans 47 and modern reloading 2nd, respectively for H355 55 FMJ's:
Start 23.0gn 2,617 FPS Max 26.5gn 2,967 FPS no pressure given
Start 23.0gn 2,940 FPS Max 25.3gn 3,203 FPS 52144 PSI
Modern reloading does have OAL listed at 2.200 which explained the massive pressure and Lymans puts OAL at 2.260, which I'm using.
All this is moot because this is NOT H355
Also, this is not canister grade powder so my results will only apply to lot# 041120