12-04-2019, 12:21 AM
I agree with Klem. COAL is best for comparison. I used the split neck method to determine COAL when contacting the lands. My chamber is a little short so I decrease these measurements for ~10 mils of jump.
16” Alexander Arms Barrel Purchased Jan 2017
Bullet COAL to lands
120 NBT 2.256”
123 ELD 2.245”
123 SMK 2.290”
123 SST 2.230”
100 TTSX 2.250”
120 TTSX 2.278”
129 ABLR 2.390”
123 Nosler CC 2.269”
110 Lehigh CC 2.236”
16” Alexander Arms Barrel Purchased Jan 2017
Bullet COAL to lands
120 NBT 2.256”
123 ELD 2.245”
123 SMK 2.290”
123 SST 2.230”
100 TTSX 2.250”
120 TTSX 2.278”
129 ABLR 2.390”
123 Nosler CC 2.269”
110 Lehigh CC 2.236”