Robert, This was the 1st time I have used RL-15. I had
NO signs of pressure and the ESs were decent. I am going to load up 100 with my 2nd to last load test (37gr RL-15, 55gr Nos BT, av. vel. 3760fps). This load matches my 204's ballistics (39gr Sierra BK, 25.1gr RL-10x, 3850fps) so I'll be able use the same come-up chart for both. I'm sure I could get more velocity but I want to make this barrel last as long as I can. I will be using it as a cool down gun for my .204 this coming weekend up in dogtown.
I had way to many "sticky" bolt lifts with H380 so I am going to wait until it cools way down before I work up another load with it.