Hey guys new to this great site but I have been reading it for years. I have looked for my question on site but have not seen a answer. I am building my first custom rifle and have a Krieger barrel 6mm 1:8 twist 5R heavy palma headed my way. It will be fluted and finished at 26 in. fitted to a savage 110 long action. I want something like a 6mm AI or 6x284. My gunsmith has a 6x284 reamer already so that would save me some money on buying a reamer. Either way I will have to buy dies and brass. My question is barrel life. I want to shoot 105 and 107 gr bullets. I have to fire form the 6mm Ackley but not the 6x284. I am thinking that fire forming the Ackley and then firing the formed cases is working on the throat as bad as the 6x284. I know the 6x284 eats throats but fire forming the Ackley to get the performance also does the same. It looks to me it is a wash. Shooting Ackley twice and shooting 6x284 once. This rifle will be used for paper and Alabama ground hogs which can go from 40lbs to 300lbs. also white tail dear. Please help and sorry if this has been covered before but I could not find the answer. Question is do both have about the same barrel life?