06-19-2018, 01:07 AM
454bore Wrote:Tried XBR with the 95 tmks and got same velocity.
Very good accuracy.
Tried them with 2000-mr and hit 2980 fps with good accuracy.
Got over 3000 fps but accuracy started getting worse and pressure was more than wanted.
Best accuracy came at 28.5 with XBR and 32.5 with 2000-mr.
They seem to be easy to get a good load with any usable powder.
I got 108 ELD's up to 2820 fps with good accuracy and low ES using 2000-mr in hornady brass but it's softer than Lapua and doesn't look to hold primer pockets for long.
Impressive velocities right up there in the 6BR and approaching the 6mm Dasher realm.
So what do you consider a safe velocity for this round? And what pressure (signs) do you consider safe?
I shot a HP match this last weekend, a NRA master was shooting a 6mm AR match rifle next to me out of a 26" barrel, I mentioned the velocities you are getting out of a 22" barrel with 105 and 95 class bullets, he just laughed. General conclusion among the HP guys is 2750 for 105's and 2850 for 95's max +/- depending on how you want to push it and long you want your rifle to last.
Not that I really care what you do with your rifle and how fast you can make them go, but if you are getting more velocity than others and primer pockets don't look to last for long. That is your first over pressure sing. Be careful.
Over 3000 fps plus with the 95's. Wow