Re: .338RUM Ackley Improved vs .338 EDGE
My 338 thunder is essentially a 338 RUM AI with a few other changes and it shoots just as fast (and if it had the customary 30" barrel) it would probably shoot faster than the 338 edge-at least comparing my velos to Shawns with my gun getting same velos with less powder.
Fireforming is no big deal and is great for target practice as they normally shoot very well while doing so. But then again, simply necking up a 300 Rum is even easier still.
Either way you go, both cartridges are great long range performers and will serve you well. [img]/ubbthreads/images/graemlins/wink.gif[/img]
ps. my barrel is 26" long and shoots 300 grain MK's at 2850, 250 grain Scenars at 3050-3100, and 225 AB's at 3350. My charges are listed in my thunder thread if you want to see them.
If it's not far, it's boring.