Waywatcher
Member
I have tried Speer and Rim Rock 158 LHP bullets, combined with Power Pistol, AA#5, H. Universal, and HS-6. I tried both std and mag primers with HS-6.
By far and away, my best results were with Rim Rock 158 LHP w/gc and Power Pistol. 5.4 grains (low end +P) launches the bullet with very respectable velocity, no leading, and great accuracy. I use std primers and get amazingly low ES and SD.
I chronoed this load in three different guns one cold winter day:
S&W M15-4 with 4" barrel: 960fps
S&W Pre-27 with 5" barrel: 920 fps
Ruger GP100 with 4.2" barrel: 900fps
I was surprised and impressed by the results, and this load has become a keeper. I am going to try 5.0 and 5.2 grains some day just to see how it performs, but 5.4 grains of Power Pistol with a Rim Rock 158 LHP is great!
By far and away, my best results were with Rim Rock 158 LHP w/gc and Power Pistol. 5.4 grains (low end +P) launches the bullet with very respectable velocity, no leading, and great accuracy. I use std primers and get amazingly low ES and SD.
I chronoed this load in three different guns one cold winter day:
S&W M15-4 with 4" barrel: 960fps
S&W Pre-27 with 5" barrel: 920 fps
Ruger GP100 with 4.2" barrel: 900fps
I was surprised and impressed by the results, and this load has become a keeper. I am going to try 5.0 and 5.2 grains some day just to see how it performs, but 5.4 grains of Power Pistol with a Rim Rock 158 LHP is great!