Sorry I know nothing about reloading so the may be the "Stupid Question of the Day." But I was looking at a 10mm round next to a 45ACP round and wondered why not extend the OAL of the 45ACP round to match that of the 10mm. It would seem that the longer case would hold a little more powder, and thus provide a little more velocity. It would seem that if Glock's frame can feed both the 45 and 10 round that it would feed this maybe hypothetical round. So is there such a round? If so what is it called? Outdoor Hub mobile, the outdoor information engine Wanna kill these ads? We can help!