Just curious on a couple powders I haven't tried, as I can get either. I have IMR 3031 on hand. I can get either of Winchester 748 or Hogdon BL-C(2). This would be my son's Marlin 30-30, Speer 150 grain Hot Cor FN's. I've always loaded the 3031, but have seen good anecdotal info on the other two.
Can't replicate Core-Lokt velocity, but it shoots well at reported 2390 fps (we haven't chrony'ed the factory ammo). Probably looking for somewhere 2250-2300 that shoots well.
Son's 336 is a microgroove, and I won't be casting for the rifle, using only jacketed. Thoughts on any of these?