Optimal velocity
Posted: Tue Jun 12, 2018 8:42 am
Some help please
My usage is TR and FTR. Calibre is .308. Using 155gr Lapua's. I've just changed to RS52 and wonder what velocity I should be looking to achieve for the likes of long range ie 1000yds stability please?
I have found a good grouping load at 45.8gr with velocity of 3020fps. I have also found 45.0grs accurate but velocity is 2950fps. What is the magic long range velocity?
How much more barrel wear am I likely to see with RS52 rather than RS50 under FTR conditions and these higher velocities?
I hope this makes sense! Thank you for reading!
JohnG :cornwall:
My usage is TR and FTR. Calibre is .308. Using 155gr Lapua's. I've just changed to RS52 and wonder what velocity I should be looking to achieve for the likes of long range ie 1000yds stability please?
I have found a good grouping load at 45.8gr with velocity of 3020fps. I have also found 45.0grs accurate but velocity is 2950fps. What is the magic long range velocity?
How much more barrel wear am I likely to see with RS52 rather than RS50 under FTR conditions and these higher velocities?
I hope this makes sense! Thank you for reading!
JohnG :cornwall: