Don't know if this is the right place for this thred so if it needs moved please move. Im looking at building a big bore. I reload and not worried about fire forming. It will have a 28 barrel. Is there much difference in fps between the two. I will be shooting 225 or 250 noslers. Let me know what you guys think. I have been around a edge but he was shooting 300 grain bullets.
My hunting partner runs the "Edge" and I use the standard RUM. He probably gets across the board about 2% more velocity. Our choices probably reflect our personalities more than any technical advantage. The rifles and optics are slightly different as well. I'm a bit more conservative, and like that if need be I can get factory ammo. However, RUM ammo isn't so available as to be a factor. Having the barrel stamped the same as the ammo can be a benefit if you cross many borders. I took a .358 Ackley Improved into Canada with cases headstamped .300 H&H. For whatever reason this raised a flag with the border guard, and I got the most thoroughly searched I've ever been. I guess he thought I had another gun I wasn't declaring. He did let both rifle and ammo pass when he was done a couple of hours later. This was pre 9/11 so I was able to retain a little dignity. Again not big reasons, and I could change and not blink. I think your decisions about the rest of your setup: optics, stock, mounts, barrel, gunsmith will have more to do with how satisfied you are with the rifle.
I just went through what You are and decided a 338 edge for if I ever choose to shoot the big 300 grain smk or berger I have the extra power. For now though I plan on using 225's and maybe 250's. I think that either way it will be a hell of a rifle.
I went throught the same problem several years back. I chose the 338 RUM, so I could shoot factory ammo if needed in a pinch, also, the rifle caliber stamp would match the ammo stamp, as I travel outside the country often. This one reason alone, was the single most factor that made me select the RUM. Foreign countries can be a real pain when it comes to the ammo matching the rifle caliber. I had trouble with a 300win and 300wby before.
Having said that, my 338RUM shoots 225 TTX's and 250 SMK's with excellent accuracy. I have yet to get the 300 SMK's to shoot well. I have since ordered a 338 Lapua, but plan on keeping the 338 RUM, as well. My RUM has taken the largest of the African Plaines animals with one shot kills using the 250SMK. I plan on shooting a Hippo with it. (Brain shot)