who makes 1 or what might work. possum hollow does not. have heard wallanchors,but all i have seen have a thru and thru hole which would leak, any ideas?
Same here as joecamel. I use these. I just crammed one in the chamber of my 457 to get an idea of how long it needed to be. Popped it out and lopped some off the fat end. Stuck back in there with some sticking out and closed the bolt. Put an Al rod in the barrel and filled it with cleaner. Worked good, no leaks.