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...