Frankford aresnal # 507.
I've been looking for a box like this for years. It is tight so bullets won't rattle, and tall enough to fit big long bullets in. I've been getting tired of trying to squeeze .45colt boxes closed, or having bigger boxes that rattle and the brass falls out of the hole after you fire a round. This box is made just right for the .454 casull, give her a look. I got a good deal on a ten pack off of midway. I think the max OAL is something like 1.850, where the normal .44/.45 boxes are 1.70 or so. I think case gard makes a 100 round that fits the .454 ok, but I like havin the 50 box.
