Re: 6mm Crusader
I was given a used 1-13 Twist 3 groove match barrel to try out my new 6mm Crusader reamer on. No idea how many rounds on it, or what was shot through it. Figured I could use it to form cases while I hunted (before I started playing with the subsonics). That's what I originally bought the 60 SHP bullets for, along with some H414.
It finished at only 20" long since he had been cutting pieces off of it from the chamber end to make dies and breaks.
Top left group was in the 27" 1-8 Twist with 44, 46 and 50 gr. of H414. Didn't want to bother putting a pressure sensor on the new (old) barrel. Pressure is definitely higher in this short barrel (probably due a tighter bore). The bottom center groups is a bunch of rounds loaded from between 50.0-54.0 gr. in the short barrel (still under 1"). I lost almost exactly 300 fps. with 50.0 gr. from what I had in the 27" barrel. Haven't ran an OCW test with it yet or anything.
I was given a used 1-13 Twist 3 groove match barrel to try out my new 6mm Crusader reamer on. No idea how many rounds on it, or what was shot through it. Figured I could use it to form cases while I hunted (before I started playing with the subsonics). That's what I originally bought the 60 SHP bullets for, along with some H414.
It finished at only 20" long since he had been cutting pieces off of it from the chamber end to make dies and breaks.
Top left group was in the 27" 1-8 Twist with 44, 46 and 50 gr. of H414. Didn't want to bother putting a pressure sensor on the new (old) barrel. Pressure is definitely higher in this short barrel (probably due a tighter bore). The bottom center groups is a bunch of rounds loaded from between 50.0-54.0 gr. in the short barrel (still under 1"). I lost almost exactly 300 fps. with 50.0 gr. from what I had in the 27" barrel. Haven't ran an OCW test with it yet or anything.
