I've recently done some testing with Hodgon's CFE BLK and had not so great results. Bullets have been 250 and 300gr Speer Deep Curls and primers have been Winchester Small Rifles. Gun is a Ruger american 22" barrel. First issues I had on round one of testing were terrible hang fires and incomplete powder burn. You could pull the bolt out and see the suit and unburned powder laying in the barrel. The reloads did not have any crimp applied to them due to the case mouth being almost too tight on resizing. When the bullets was seated during reloading, a small sliver of copper jacket was peeling off so I figured there was no need crimp. So, after a call to Hodgon, I was told to try applying more crimp to the case. Next round of testing I did just that. Kept everything the same except a very minimal flare of the case mouth to alleviate the jacket cutting, and then a nice heavy crimp after seating. Hang fires stopped, but still had very dirty cases and powder laying in the barrel. So for my next trick, I've still kept everything the same as the last round of testing, but switched out to a CCI mag 450 primer to continue my troubleshooting. I've been using toned down data from Sierra's book that has information listed for a 240gr bullet when testing my 250gr bullets.
Has anyone else done any testing with this stuff and if so, what have your results been like?