A Knight LRH 52cal has no problem getting this bullet out of the muzzle at around 2100fps with BH209. It does thump pretty hard. I prefer the 325gr FTX because it cost far less and expands just a little easier.

This is what the BOs i shot into media looked like. I had to dig it out of some wood after going through some jugs, soaked phone books and a dry phone book.

Barnes Original .458 300gr Semi Spitzer Retained 274gr Expanded OD .722-.709 110gr BH209