Home rolled hunting ammo questions.

[Constitutionalist]

I'm getting 2540fps from a 20" AR with the 123SST, 27.0gr of IMR8208XBR and a CCI-450. My sample size is one large doe at 125yds but it was a bang flop with complete penetration, a good size exit hole and excellent terminal performance. I could probably go a little hotter but it shoots 1 MOA. IMO there's no need to push it and lose accuracy. You might even get close to 2600 with the longer barrel.

Have fun!