I'm not sure why you would mess with resizing 180's when there are 170's out there, unless the answer to that is "why not" which I've done more than a few times. Get a forester trimmer, set it to length and it's not a problem keeping them in spec. I get right at 2300 with lil gun and have a bunch of loads with 296 and 110 (same powder different name) it's suppose to be +2200 and i have a bunch of that powder. 9 mm bullets shoot out of them too but it's pushing them really fast for hunting but for range play they work ok. all 3 of mine (ruger american, encore with a mgm barrel and a savage 110) shoot the 170-180 loads a bunch better than the 145 fmj.