I JUST SHOT a dozen 58.4gr 252 UNSIZED(at three 78-80 yard targets now) cast this 5am... out my front window (just bino-checked and four rounds all went within 1" of eachother on one group... off Nothing but window frame... in Avenger set MAXED ~80yard tired and shaking in a cast... ~78yard torso in my videos- CONTACTED first shot. Dead On with my 50gr BT also, at 45yard in BOTH Avenger(Origin?) and Challenger- both at max power wheel and at MAX reg pressure. if the origin is reg adjustable too, SURE, and the challneger, i will take out and put in turret tomorrow and try out the 60gr at 100+yard. i can finally NOT have to use wheel chair and crutches now, so its up to getting HELP to paint all my range targets, I shot up in chair, entire range!... I am CONFIDENT that the Origin at that FPE, being like, or near identical, would EAT THESE UP, and they are easy to fit even with size XL glove hands and pins and needles nerve pain, i can QUICKLY load them into a 3D tray i printed for another gun and dremeled to fit avengers and challengers, etc.