Reloader 15.5

[Burt Gummer]

OP, how long is your barrel?

Compass Lake Engineering 18” Criterion with JP Enhanced Bolt

Thanks! That's quite a bit better than what I was getting with Varget (105s at 2450 out of a 16: Lilja near max). 

Have you tried using a drop tube to put powder in the case? It makes a significant volume difference for me for putting both Varget and Shooters World Precision in Grendel and ARC cases.

Interesting. That’s better velocity out of Varget than I would’ve guessed. With my barrel being two inches longer you would think 2500 fps is achievable with it.

Anyways, I’m happy with the results and potential so far with RL15.5 and just the loads I’ve made but will still see what you can get with up 28.6 gr. I won’t push it more unless load data gets published for it and allows for it. For what I’m using it for anywhere in the 2500’s with temperature stability will do the job just fine. Mainly a steel plinker for long range. 

I am curious about the drop tubes however. I didn’t know they were used for that. I’ve been using the Frankford Arsenal metal funnels with sized necks for each caliber that then rest on the shoulder of the case as you drop it in. Do the drop tubes do a better job at filling the case than this method?