Biggun the appeal of the 300 blackout for me is two fold. One my 7 year old son has graduated from his 357 mag single shot rifle for deer season to a semi auto ( he has proven bis ability for careful shots not squeeze as fast as you can). I prefer the ar platform for him as he has begun target shooting my 223 ar's. So the platform is set. Next I looked at the various caliber. My 308 and 243 ar 10 are too much for him. 223 is too weak. 6.5 and 6.8 are possible as is 762x39. But I shot a 300 whisper and noticed the weak recoil. So I went 300 blackout since it is being loaded by several companies. The second reason is the fun factor of suppressing it. 300 blackout is a substantial improvement over 357 for deer hunting. When he gets a little bigger we will move on to pistol hunting.