So, I made up 169 350 legend rounds with that Accurate 36-180LG boolit and 23.5 grain of AA11FS. (AA11FS is very similar to W296)
I've shot hundreds of rounds of this load and have not had any issues. Today, however, I had issues. Sadly, this was on a rifle stage of a match...
One of these primers got stuck in the upper and jammed in by the bcg. I had to take the buffer tube off because the bcg was stuck about 2" open.
So, I think I'll try out some different powders. I have been using W296 and AA11fs for a long time in 44 mag, but I get a full case. And I've always heard that W296 doesn't like case space and I was wondering about using it in this cartridge just because I was worried about the excess space. I'm thinking I just found out why you do not want to use these powders with a lot of space in the case.
I've got some HCFE BLK - > Hodgdons site shows that a full case will produce much lower pressure. And maybe look around to see if I can get some Norma 200...