In a recent lot of 310 dies I received I found a MR die that has the number 132 on it. Only chart I can find that shows that number says it was the 6 MM Lee Navy rifle of 1895! That was a very interesting US military arm that was ahead of it's time, using smokeless powder that varied in characteristics from lot to lot and didn't store well on-board ship. The rifle also had Medford form rifling that didn't stand up well to the smokeless powder and suffered rapid bore erosion. US Marines did carry and use the rifle in action in Cuba I believe but after only a couple of years, it was decided that all services should rely on the same .30 caliber. Needless to say, the rifles were always a rarity although Bannerman (of course) did sell a few to the public, Including some recovered from the sunk battleship USS Maine!
If this really is in 6 MM Navy, this must be a very rare die, I doubt many straight-pull Lee rifles were in civilian ownership! Anyone have another answer for what a die code 132 could be? While rare it is certainly of little value I'd guess, other than an oddity.