I am having two actions barreled as part of the group buy and need to get them shipped. After reading Blackops post in a similar thread i am at a bit of a loss as what to do. The two barrels that I have are a 24" 1/8 twist benchmark blank rem. varmint contour 6 groove and a 27" bartlein 1/10 twist 5r m24 contour. My original idea was to chamber the bartlein for 300 win mag finished at 24". The benchmark was going to be chambered in 308 win and finished at 18" with the idea that I could run subs if i wanted. If I were to flip flop the barrels i am guessing the win mag would finish at 22" with an 8 twist barrel so runnin heavies wouldn't be an issue and the 308 would still finish at 18". I don't plan on extended range shooting ie: over 800 with either rifle. I am leaning toward the shorter/handier platform. Both rifles will be threaded and a removeable muzzle brake on the win mag. So any thoughts on muzzle brakes would be valued as well. Thanks gents, Will