Here are some numbers for comparison purposes:
Chamber data:
Cartridge Name Neck Dia Neck Dia Freebore Lead Lead Max Case Pilot Size NOTES
Junction Mouth Dia Freebore Length Angle Length
308 Obermeyer 0.3460 0.3440 0.3085 0.085 2d 30' 2.025 0.300 JGS #3519
308 Obermeyer Special 0.3330 0.3330 0 3085 0.085 2d 30' 2.018 0.300 PT&G #577
308 Fullbore 2012 0.3435 0.3435 0.3085 0.080 1d 30' 2.025 0.300 PT&G #37960
308 Fullbore 2011 0.3445 0.3445 0.3085 0.050 1d 45' 2.025 0.300 PT&G #15917
308 Palma US Team 95 0.3420 0.3420 0.3083 0.050 1d 45' 2.020 0.2984 JGS #3775 .2985 Bore / .3065 Groove
308 Palma Match 0.3420 0.3420 0.3084 0.086 1d 30' 2.020 0.299 PT&G#7374
308 Palma Bisley 0.3430 0.3400 0.3084 0.080 1d 30' 2.025 0.298 PT&G #8288 Similar to 2012 except for tight mouth
308 Win Match 0.3435 0.3435 0.3085 0.077 1d 30' 2.025 0.300
7.62mm NATO 0.3461 0.3445 0.3166 1d 25'55" 0.300 JGS #3565
308 Win (Tubb) 0.3410 0.3410 0.3085 0.090 1d 45' 2.025 0.300 JGS #3674
308 Win 0.3462 0.3442 0.3100 0.090 1d 45' 2.025 0.300 JGS #3566
I am suspicious that at Rem SA mag lengths many of the newer high performance VLS, Hybrids etc. could end up with the ogive starting inside the case neck and /or be seated so deeply as to use up valuable case capacity. I'd have a talk with your gunsmith on your best option.
