Not much info/experience with this powder anywhere beyond the powder company, so here I go. Its a fast powder, so I am thinking 40 to 55 gr bullets in 223.

Sierra 52 gr SMK is my first choice to work with because they have an excellent reputation and I have 1200 on the shelf

Wolf SRM primers because some smart people tell me milder is better with extruded powders. I will probably rerun these test later with Fed 205M and Rem 71/2.

I want to start with a velocity between 2950fps and 3100fps because that range has shot best with this bullet in the past. so I choose 20.6gr (westerns starting load), 21 gr, and 21.5 gr for a trial run. I load up 10 rounds of each and take them with me to test some 600 yard loads.


Time was short, so I only shot 1 group with each load, then went back and shot the best load again.

20.6 gr 0.920"
21.0 gr 0.636" and 0.697" for an ave of 0.667
21.5 gr 0.860"

Ave for all three loads tested was 0.78" I shot my chronograph, so no velocity info.

pretty good shooting for 600 yds

Not at 600, shot @ 100.  80 gr loads I was working on are destine for 600 eventually. CMP range is closed this week.

5 more groups with the 52 SMK and 21 gr Lt-32 to proof the results from the first try. Wolf srm primer, new LC case

0.341
0.850
0.669
0.495
0.971

0.671" ave @ 100 yards

Tried 22gr to see what would happen 0.851"

I love LT-32, here is a target I recently shot at 100 yards and a 10 shot group using Hornady 52gr BTHP Match #2249, and 22.0gr LT-32, LC brass #41 primer Shot from a sandbag with a 16" 1-7 barrel AR