TFox, its yours, so go shoot it, Essex frames are soft in my experience, but workable, if it works, you got a good 1911, that will do a decent job, I have 1 pistol built on one, and after massaging, is a pretty cool pistol. At 300, if it works, you got a good deal. If you are thinking 1500 rounds without wear, well, it probably won't happen, still might work though.