Had not loaded the 200 NAB for the Winny yet, so grabbed my trusty Nosler reloading manual and decided to use its suggested powder, H4831. Will report back.
I've been there, brother.
Are all shots fired at the same time? I've been involved with several rifles--especially overbore cartridges, e.g. 264WM--where they would stop throwing flyers if you let the rifle cool down after the 2nd shot. Try shooting groups of two then wait and see what...
Helped a friend load for his. BTs instead of ABs. Settled on IMR4350 after using a number of slower powders, e.g., 4831, 7828, Re22. He's very happy. Capable of shooting bugeyes.
I don't own a Winny but helped a buddy reload 180 BT's. It was a close call between IMR4831 and IMR4350, but I have a saying "When in doubt, go with the faster powder." (My experience; YMMV.) He shoots bug eyes with that 4350. Anyhow, a 4831 speed powder should work quite well. For that...
I have an Ackley version and am having some good indications from 210 Swift Sirocco over Re-17. That said, if it doesn't settle down into a dependable load, then it's back to 210 NPT or 200 NAB over Re-15.
I just found this sticky, and I'm glad I did. I've owned QL for several years but don't feel like I've really fully used it. Re: QuickDesign, I have a copy as well. I like wildcats, so marrying the two has been very helpful in getting started on load development. One question: Does any sort...
Cool rifle. A buddy of mine dropped a huge muley about 4 years ago with his late father's M100 using a 150 NBT over Varget. I'd agree on the crimping, and, yes, a SB sizing die is smart. He's not shot 165's out of it, but I'd suspect a mid-burn rate powder would work. Good luck.....and this...