I also am looking for starting load data for my 6 x 221. I'll be shooting Berger 65 gr bullets..if you have or get data, please share...DENNIS @661 343 7838 THX.Is it better to use 300blk brass and neck down to 6mm.
Or use 221 brass and neck up to 6mm.
Can someone also post
Some load data for this cartridge with velocity achieved and gun used barrel length bla bla bla..all the pedigree info..