6.5 Grendel

[Deputy819]

I'm about to give the Speer 90gr TNT a try with Benchmark and/or 8208 XBR and see what happens.

So, I did….ended up at 31.5gr IMR 8208 XBR. Here's 5 shots at 100 yards. I pulled the 1st shot (the higher one) just a bit…

 

[Catbird]

So, I did….ended up at 31.5gr IMR 8208 XBR. Here's 5 shots at 100 yards. I pulled the 1st shot (the higher one) just a bit…
View attachment 613344

Is this an AR or bolt gun?

 

[Deputy819]

Is this an AR or bolt gun?

AR-15 with an X-Caliber barrel for both loads.

 

[zacii]

So, I did….ended up at 31.5gr IMR 8208 XBR. Here's 5 shots at 100 yards. I pulled the 1st shot (the higher one) just a bit…
View attachment 613344

What velocity did you get?

 

[Deputy819]

What velocity did you get?

Haven't put the Magnetospeed on it yet. I worked up the 90gr load using the OCW method and then tweaked seating depth to within a couple thou of max magazine length.

 

[Aoudad shooter1975]

By far the best has been 8208XBR but also have used TAC and X-terminator with some success I have used a host of bullets from 85 grain to 130 grain