Thread: High Pressure signs?

Originally Posted by 10-Ring

Those cases show a mild load. Not even the slightest sign of excessive pressure. You've room for movement there. Go up in .3 grs and you should easily reach 2,700 fps safely.

Regarding SD. It's not that critical unless you're shooting at extreme range; accuracy is more important.

My Tikka 24" 6.5 CM has a long throat and magazine and to get 2,600 fps I have to load around 42.6 gr of H4320 from memory. I have settled on 44.3 grs for 2,750 fps with Lapua SP cases and 143 ELD-X. Note, that this load would be too hot in some rifles but is just warm in mine. I can easily get 2,800 fps with RE16 with about the same pressure as the H4320 at 2,750 fps.

BTW: H4320 is AR2209, exactly the same powder. ADI supply Hodgdon with AR2209 and they repack it under their name. I've used both at different times and had identical velocities. AR2209 is a little less expensive to buy and you also get 500gms vs 1lb for the Hodgdon.

Thanks @10-Ring. I want to get more into long range shooting as well, so I looking for as consistent velocity but with accuracy. This is why I am not trying to get the highest possible velocity out of it, just a constant 2700’ish.

Thanks for the info about RE16. I have decided to start with H4350 because I am doing my load development in winter and it is supposed to be quite temp insensitive. Also another reason why I not keen to run on maximums at this stage.


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