Thread: 284 win getting low velocities

Thx Nick. That max load data from the adi website is different to my nick Harvey book which lists the max for 140g prom with 2209 as 54.5.will have to use the adi data in the future.

Anyway have loaded some 150g Sierra GK’s with Re17 to see how that goes. I am still wary that my cheap chronograph is under- reading but can’t be more than 50-100 FPS.

Cheers Ross

Originally Posted by rossm-96

Thx Nick. That max load data from the adi website is different to my nick Harvey book which lists the max for 140g prom with 2209 as 54.5.will have to use the adi data in the future.

Anyway have loaded some 150g Sierra GK’s with Re17 to see how that goes. I am still wary that my cheap chronograph is under- reading but can’t be more than 50-100 FPS.

Cheers Ross

Yeah the 150's over rl17 will get things humming. Fella on the other forum getting 2900ish with the same load

Originally Posted by Nick-D

Yeah the 150's over rl17 will get things humming. Fella on the other forum getting 2900ish with the same load

Progress report: Managed to get to 2750fps with 53.5g Re17 and 150g SGK. Still very accurate (.5 moa). Got pressure signs at 54 (sticky bolt but no issues with doughnuts in the case neck.) This is a good improvement on the 2209 loads but I still need to verify the chrono by measuring real drop vs predicted drop at longer range. Thx again for all the help. Ross