Ok, was thinking about this and looking at our primer carriers and decided to measure the hole in ours. Well, it is just under .25 ( the hole the primer fits in. All we would need to do to convert to 25 acp is to cut some 25 acp cases to the depth of our primers and ream out the hole just a hair to fit the cases. It should work fine - just put the 25 modded case into the reamed out primer carrier and let her rip.