The RWA HM1000X .30 caliber barrel is a Lothar-Walther polygon barrel. IF I decide to size/resixe pellets would you recommend a 7.62 or a 7.63 resizer? I have the TRROBB tapered resizer for my .25 cal but he doesn't make one for .30 caliber. Looks like the only .30 caliber resizers make the head and pellet skirt the same size. Doesn't seem right...any problems with this from those who have used one?