Cz 527/ 90 tnt/ 3122 fps!

[Harpoon1]

[dexdog]

I could not adjust for sea level and did not adjust for your 80 degree F ambient temperature, although I think Quickload uses a default of about 70 degrees F, so the pressures in QL would likely be a bit higher than program indicates. In any case here are the outputs for a 23.5 inch barrel using H335 with Speer 90gr TNT: 32.4 is 50036 psi, MV is 2999; 32.6 is 51041 psi, MV is 3016; 32.8 is 52067 psi, MV is 3034; 33.0 is 53112 psi, MV is 3051; 33.2 is 54177 psi, MV is 3069; 33.4 is 55263 psi, MV is 3087

[Harpoon1]

[Happy2Shoot]

Reload that 33.4 grain case 5 more iterations of 33.4 grains and let us know how it holds up. What brand case is it?

[Harpoon1]

Reload that 33.4 grain case 5 more iterations of 33.4 grains and let us know how it holds up. What brand case is it?

[Happy2Shoot]

2 things.

1 this is a safety test. If your brass craps out at 2 or 3 reloads I'd say that load is not safe. If it made it to 10 reloads I'd say it was completely safe.

2 I think it would be very educational to the 6.5 Grendel community to know the answer. Some people say: "even if the load is safe in the rifle, the brass is not built for the higher pressure".

[Harpoon1]

[northdude]

You could try some win748. I'm using it in a bolt howa with good results

[Harpoon1]

You could try some win748. I'm using it in a bolt howa with good results