I had one built when it was a new cartridge. The only load data I could find was using RL15! I guess I will have to try some new stuff after reading what others are doing! Seems guys are using some slower burning stuff.
Looks like i was using IMR4895 with a 250gr TTSX for some sub MOA goodness. Looks like i also used some BLC2 with 220gr hornady softpoints for some shock and awe. Supposed to be pushing close to 3200fps with that load. Primer pockets may have been harmed (for scientific purposes only). Love that gun, just put a smile on my face talking about it