09-13-2013, 02:13 PM
LRRPF52 Wrote:Hornady's 9th Edition shows 2700fps max at safe levels from their 18" barrel with 100gr projos. Fastest powder was Accurate 2460. Alexander Arms' also got the fastest results with 100gr Scenar using Accurate 2460. Haven't seen any data for 100gr anything with AA2520, other than with the 100gr Partition, which is a totally different ball game again because of the bullet construction that has a start pressure consideration like the solids, even though it's not a solid.
If you are going to continue to toss seasoned advice aside and run pressures over 62,000 psi in a SAAMI MOAP 50,000 psi system, consider lapping your bolt to the extension so that you know you will have as balanced load-bearing on the bolt lugs as possible. That will allow you to get away with a little more longer before you break your bolt(s).
Seasoned advice? 62,000 psi what are you talking about?? I said i was going to try a different powder and now your talking about running pressures over 62,000?