Using magnum primers is totally safe, my spreads were much better with non magnum.
also RC is more sensitive to AOL variation than n320, so it's something to keep an eye on
4.7 made 171 pf for me...
i use magnum primers, but standard primers seem to shoot hotter, and more consistent.
This powder is a bit sensitive to OAL
so make sure your dies are tight.
my oal is 1.175 to 1.18
Ok had a better second day of chrono..
The major changes were new battery on the chrono, cloudy day...
And the chrono and ammo were not as hot from being under direct Texas sun light...
4.7 seems to be it for me...
Coal 1.175
Small magnum pistol primers
Federal brass
180 bbi bullets
5 inch schuemann ulti match barrel
Ramshot comp
4.0
Hi 886
Lo 836
Avg 859
Sp 50
Sd 17
4.1
Hi 900
Lo 866
AV 877
Sp 34
Sd 10
4.2
Hi 907
Lo 858
AV 885
Sp 49
Sd 16
4.3
Hi 923
Lo 883
Avg 904
Sp 40
Sd 12
4.5
Hi 937
Lo 900
Avg 923
Sp 37
Sd 10
4.7
Hi 970
Lo 921
Avg 945
Sp 49
Sd 14
I've loaded 4.0 to 4.7 just to get a better idea of the pressure curve...If it all goes well I will try 4.8 and 4.9...
I'm also going to do some 4.6 and 4.7 with small primers...
Yeah I think this batch is way hotter than I anticipated...
Tomorrow I'm running 4.0 to 4.7 just to try and get a better idea of what the pressure curve is doing...
Yeah for sure Uspsa...I was told 4.6/4.7 would be the number...
I hesitate to think it's the magnum primers as I've been using them for years and they usually only add like 50fps...
I do have some small pistol primers so i might roll a small batch at 4.6 and 4.7 to see where it's at...
It's just really odd that my velocity actually went down the more powder I put in it...
I was really excited to try this powder...
I know 3 people using it with excellent results.
Unfortunately I'm not one of them
I have 20lbs of this stuff not sure what to do with it...
Ideally I like to get it to work, at least for practice...
Being that I'm loosing velocity when pushing passed 4.4 I'm wondering if maybe i need to drop the charge instead of increasing it? Maybe I'm at some strange place in the pressure curve?
I didn't see any signs of over pressure on the cases it...
Coal 1.175
Winchester small magnum pistol primers
180gr BBI
4.4
Hi 928
Lo 873
Avg 900
Sp 55
Sd 19
4.5
Hi 895
Lo 838
Avg 862
Sp 57
Sd 19
4.6
Hi 914
Lo 859
Avg 894
Sp 55
Sd 16
4.7
Hi 913
Lo 844
Avg 880
Sp 69
Sd 23