Re: 338 edge?
I am relaxed, there's no fur up here. The only comparison I have done straight up is with the 338 RUM, 338 LM and the Edge. I stayed away from the Rigby and WBY rounds for brass, fire forming, shoulder issues etc. My experience with the 3 I tested was simple, all things being the same, barrel length (26") etc and shooting the 300 SMK, the Edge and the LM bested the RUM by about 80-100 fps, the Edge bested the LM by very little 20-30 fps. I tested with only temperature stable powders, there was some velocity to be gained by using others but to me it was not worth it. Also noted later, the longer the barrel length the bigger the velocity spreads between the 3 rounds, the lighter the bullet and the shorter the barrel the tighter the velocity spread between them became. THat is really the only comparison info I can give you that has not been posted hope it answers your questions.