Thread: 7RM preferable powders?

I've had good results with IMR 7828 and Federal primers (stopped using the Winchesters after heard a few had had issues) very consistent and repeatable results and speeds across different weather days and NI temps.

I'm a bit of a anal bugger when it comes to weighing out every pan and group projectiles into same weight catergories (and stick together with mask tape and mark weights for comparison, and checking OAL's for consistency of jump. Also crimp v noncrimp can have an effect (I'm currently crimping 7RM rather than not and seems like it makes a difference - if not mentally)

Lot of variables there as well as powder... Just saying.