Shot a couple hundred rounds of .45 ACP loaded with Titegroup today:
Precision Bullet 200gr coated LRN (
www.precisionbullets.com)
Rem 2.5 & and Win LP primers
4.2 gr Titegroup
Speer brass, crimped to .470
1.24 OAL
5" barrel - 18.5lb recoil spring
I was at the range about 16:00-18:30. Temp was in the very high 90's, relative humidity about 85% (it rained this AM). Chrony 10' from the muzzle.
Representative 10 shot group with the Rem primer:
844fps avg velocity
811fps slowest
859fps fastest
48fps extreme spread
14.93 SD
Same with the WLP primer:
846fps avg velocity
835fps slowest
854fps fastest
19fps extreme spread
7.93 SD
I've heard the Win primer is a little hotter. Today, it yielded more consistent velocities.
Shooting from a kinda sloppy rest, 25-yard 10 shot groups were about 5" w/ Rem primers & about 4" with the WLP's.
I shot five rounds w/ the WLP primer & loaded with 4.8gr powder, all else the same. Avg velocity was 889fps. Recoil was sharper. I'll keep shooting the 4.2 gr load - pleasant plinking load & it had no problem cycling against the HD spring.
Loads were much smokier than some Federal 230gr American Eagle shot at the same time, but I'm not sure whether that's Titegroup or the coated bullets, as I've just started shooting this combination. The pistol was fairly sooty when I was done, but cleaned up easily. Almost no unburned powder in the barrel.
hth,
NetLar