I'm have a savge mod 11 in 243 win with 1 in 10 twist. Sierra says to use 1 in 8 twist for there 95 gr. Matchking but I wanted to give them a try anyway. I GOT 3/8 group at 100 yd. On a 8 in steel shoot 4 for 4 out to 600 yds this spring befor the farmer started planting his crops so I haven't a...