For the .300 Whisper. LC .223 (Federal A.E.) brass, CCI small rifle primer, 18gr of H110, Hornady 150gr FMJ. This is out of an AR-15 with an E.R. Shaw 16" 1x8 twist. Going for a good super-sonic load. From what I hear this seems to be the best load for what I want. Any thoughts from you guys?
Here it is, my first .300 Fireball/Whisper/.300-221