Finally able to get all the parts together and shoot my 300 Blackout JAKL.
Tested with multiple brands of super and sub ammo. All using a YHM Phantom LT suppressor.
Of the 4 different sub ammo I had one hand only one box had issues, I had two boxes of older Grizzly Cartridge Company 220 GR sub sonic ammo, one brass cased that worked perfectly and one nickel plated that wouldn’t load, the bolt wouldn’t close. The 245 gr tech coated lead Missiori Bullet Company reloads worked perfectly, as did the 220 gr S&B sub rounds. 150 GR supers worked great. It was 10 Deg outside so I didn’t focus shot groups, I was hitting the 25-meter target, but I wasn’t getting good groups. Happy with my JAKL so far. Waiting for warmer weather to test accuracy and other loads.
