I think this would be excellent to have in a long-barreled firearm. Last year I bought a chamber adapter for 7.62x25 in 30-06 and it was excellent. It was pretty quiet with factory ammo and awesome with light re-loads and heavy bullets. It seems like the cheapest and easiest way to get a project rifle going would be in a Handi. Has anyone heard of anyone that could make something custom that would not cost an arm & a Leg?