IMO Reloader 15 is too slow for mild cast bullet loads. I would lean toward Unique, 4227 or 4198.
AA#9 or 2400 may also prove satisfactory.
I would also say that best accuracy might be obtained using 20:1 lead tin alloy and a bullet slightly oversized.
YMMV,
KN
Ken, I’ve used 4198 for the Sherwood. Accuracy is good but I believe should be better. Although these are irons and my eyes just celebrated their 60th bday. I will order a .302 sizer and see how that goes. And since I’m just trying results on paper, I still need to resize and try some of the 110gr pills I bought that were made for the M1 carbine.
