As well known by the owners of Huben air rifles and pistols in both calibers from 2020 onwards, they are manufactured using Huben made barrels that are incompatible with normal sized slugs. Both calibers are ovesized but they work well with heavier pellets. Gregory has designed V2 boattail slugs which worked well in the barrels prior to 2020 but not so well in the newer barrels. He has come up with V3 of his slugs casted by molds made by mp-molds.com These slugs are discussed in this YT at 9 minute mark
MP-Molds now have the molds and the sizing dies available on their site now.
www.mp-molds.com
MP-Molds now have the molds and the sizing dies available on their site now.
Air rifle molds Archives
www.mp-molds.com 