I'm currently working on getting a barrel turned for my rifle in 6BRa. What twist rate has everyone been using and im assuming 4895 is the go to powder. I'll be using 107 SMK's, and was thinking about going with a Bartlein 5r 7 twist barrel at 26". Just making sure the 7 twist barrel wont have pressure issues quicker than an 8 twist. Thanks for any information about this cartridge.