M305 and Dan Newberrys OCW method

[eaglesnester]

Has anyone tried the OCW method with a match grade or even a GI issue grade M305 using NATO spec brass? If so what were your results and what were your powder choices charge weights and bullet choice?

 

[Hutchy]

I did a OCW test on mine with a labradar chrono. I used hornady 168 HPBT. My powder choice is usually varget(I have an adjustable gas plug). I found the node to be around 2686 FPS which was 44gr of varget and 2.264" CBTO, and it usually hovers around an inch at 100m.

I didn't sort brass at all. I uniformed the pockets, flash hole ect before small base resizing. I've change my methods a little since then. Use the data at your own risk.