Thread: Improving 45-70 ammo with a mandrel

the 300grn is a rather light for calibre projectile for the big case........ you cannot argue with the groups you are getting...under an inch is very good..... another bit that popped out at me....you dont have huge scope ,so group of inch with a 4x isnt shabby anyday....try a plain X target no more than half inch wide stripes it MIGHT help you to have finer aim,or not .