u/PhilipGreenbriar

Image 1 — Understanding and iterating from tests
Image 2 — Understanding and iterating from tests

Understanding and iterating from tests

I’m working to develop a 6.5cm load and I feel like I’m getting close but I wanted to gut check with the hivemind. In the center, I fired two test shots with factory ammo to make sure I was on paper. The top other circled groups are shots of 10 with ELD match 140g. Then there’s the spray. Two groups of 10 shots using similar charges but with Nosler RDF 140g bullets.

I’m interpreting this as I should do a bigger run of the bottom left group since that looks the best. And I should probably stop playing with the Noslers since my rifle doesn’t seem to like them. With the goal being to tighten up my groups and reduce SD and ES, am I on the right track here?

u/PhilipGreenbriar — 3 days ago

Is this carbon buildup or a fuckup?

Sorry if this is a stupid question but I have been shooting this for about a month, working on load dev and have put a few hundred rounds through. The end looked kinda matte and I assumed it’s carbon buildup between the end of the rifle and the suppressor but now I’m concerned I may have just damaged the barrel. I used a brass brush a little but mostly a toothbrush / towel with gun cleaner.

u/PhilipGreenbriar — 4 days ago