RuralRifleGuy
Active Member
Recommendations for a caliber that performs well with either a 7.5" or 8" barrel? I have a 7" handguard that I need to use and I'm not sure what would work well out of a barrel in those lengths. I'm building a 300 BLK pistol with a 10.5" barrel so I want to avoid making a second 300 BLK pistol. It seems my other options are 6.5 Grendel, 6.8 SPC, .458 SOCOM, and .50 Beowulf. I don't want to go with a pistol caliber lower but if there are any other rifle calibers I should consider I'm open to suggestions. I'm building a full size 5.56 rifle so .223/5.56 are not calibers I'm considering for this.