I am asking this question on behalf of a friend. He is getting a 30 inch barrel for his .308 LRS2. He is planning to use heavy rounds in the 190-220 grain range. Can anybody recommend the ideal twist rate for this set up. The standard barrel comes in a 1 in 11 twist rate. Would this stabalise heavy weight rounds or should he go for a 1 in 10 twist.
Many thanks in advance