Thread: 30-40 Krag in a 303 SMLE action - max pressures?

Thanks all, appreciate the advice. Searched up GRT now going down the rabbit hole of simulations - being an engineer I love a good simulation tool! I put in a couple of loads I have chrono data for, GRT was pretty close, within 10 fps, so that's encouraging.

Originally Posted by bjp

Thanks all, appreciate the advice. Searched up GRT now going down the rabbit hole of simulations - being an engineer I love a good simulation tool! I put in a couple of loads I have chrono data for, GRT was pretty close, within 10 fps, so that's encouraging.

Yeah it’s bloody good eh
Like any simulation it’s only as accurate as the information you give it
You can get it really accurate if you muck around with case capacity testing etc

I done a black powder load the other day GRT said 1399fps my real average over the lab radar was 1406