I got the 6.8 for better performance on wild hogs, Texas whitetails and the rare coyote and also had to have a new toy to play with. Got a 16" Stag lefty upper back in august and just ordered a Ko-tonics 16" spr , so I hooked. The only ammo I have tried has been Remington 115 gr OTM , every other brand has been on backorder for a while , any suggestions?