The Story of the Grendel bolt

[Lemonaid]

Thanks Vascar2; My TC is the .136.
That means resizing 7.62*39 brass is a no go too than? Too bad I have over 4500 large BR primers. I bought them for my 5r 300 winney 700 Rem., That won't get used in 3 lifetimes.��

You CAN resize 7.62x39 brass and use in the grendel, but may be disappointed with the results.
I did a 20 round Lapua 7.62x39 resized brass test, using Fed 210 primers for my RAP. The lessened case capacity has convinced me not to go much further with the experiment. It's hard enough to get enough powder in the case for good velocity as it is with factory 6.5 grendel brass.
Others have posted on the forum of short case life for reloaders, fast primer pocket enlargement.