Peter--I don't know if they are B&A, but some of the best benchrest shooters of the day (50s) made their bullets with B&A dies. The Tony Boyer of that time (Sam Clark) I believe used them, I passed up deals on B&A dies several times, I have only seen them in 224 caliber, there may be others I'm not sure, but the 219 Donaldson Wasp ruled until the mid 50s. I used to shoot off-hand at a half stick of dynamite @ 135 yards in the late 50s for hams and turkeys against a couple of guys that had Wasps and of course the then new 222. I used a 243 Winchester Model 70 with a Weaver K10 and thought I had the world by the ass.