Hi all , I recently acquired a nice Schmidt rubin and am starting to reload for it ,I found video of a chap using 21grns of IMR4227 and a 200 GRN HC lead bullet gas checked at 311 , I tried the load with both full length cases and ones trimmed to 54.5 and 53.5 mm got a face full of hot gas with every shot. Can't seem to find any more data on loads people are using ,lots of comments on using IMr4227 and red dot but no actual data( the only powders I have are IMR4227,GM3 and red dot,) Anyone have a starting point with any of these that will work without me needing a welders mask to shoot!?
Thanks
JB