7 mag reloads

[Rob5589]

Been working on a load using h100v and 140 gr TTSXs with Hornady brass and Federal GMM LR magnum primers for some time now. Accuracy was promising - less than 1” at 100 yd - but the best ES I could get was 45 FPS. I have since switched to a small stash of 150 gr ABs and 62.8 gr of IMR 4350 using same case and primer. Velo is 3050 FPS with ES of 24 FPS and better than 1” at 100 yd. This out of a Win M70 with 1:9.5” twist 26” barrel. I think I can push the AB up greater than 3100 fps and close group in with seating depth tuning but not sure I can afford to go through what few bullets l have left to run tests - I’m down to 37 .

If all I had was 37 bullets, I wouldn't be messing with seating depth trying to best what seems to be a good load.

 

[IrkedCitizen]

The only option I have for doing so is the Lee crimp die. Thoughts?

I would suggest buying a full length bushing die and different bushings for neck tension and maybe look at mandrels

 

[willtim]

175 gr ABLR and RL 22.