Well I read all the post 3 times ! Some very good points posted above .
I built , bought , still have a pile of both the Rums and Edge Rifles and always will ..
Never messed with the Papua or any Normas and never will .
I prover that two rifles , 338 Rum , 338 edge running the same components and build specks were almost identical.
338 Rum , 300 gr berger, h-1000 @ 2883
338 Edge , 300 gr berger, h-1000 @ 2884
Both were 1/10 twist , 30" Carbon barrels built for Hunting .
My furthest kill on Elk so far is 1244 yards. Tons of testing both of these Caliber's.
If I remember correctly at least 6 or 7 builds in both Caliber's.
Then I tryed a 24" Carbon 338 Rum , all i can say is Wow ! 24" barrel , t-3 Termanator, 250 gr bergers , h-1000 @ 2997 ft.per.sec!
Super easy to hunt with compared to the 30" barrels.
Then jumped back over to a 300 Rum .
26" carbon barrel 1/9 twist , 245 gr. berger , Nv570 @ 3010 ft.per.sec. no kills with this new build .
Most rifles build above are with Remington actions . With minimal work done to them . One Edge was on a Lawton 7000 action . I still have this one and I can eject a live round . Most of my Coals are around 3.95 length .
Not a single rifle I built has a extended box of any sort . I look at it this way you reload for this rifle ..you should be able to get it to shoot almost perfect . Hole in hole .
I trust my reloading that much ! I always have a round ready to stuff in the action if needed.
My builds have been from 9.5 pounds up to 19.6 pounds all in . The heavy ones are just not good for this old guy hunting anymore !
If I had a choice of builds today with my experience on the above ?? As the guys on here know me well ...it would be a tough choice . Probably build one of each again !
One thing ..during my testing I was stacked up with Remington brass and H-1000 . Now I have some ADG brass and a pile of different powders to re test !
The weather is starting to turn over here so more testing to come !
I pushed my self to to 3027 yards on steel with the 338 Edge , its past time hit my 2 mile goal !
Anyway if I can help you out with the Rum's or the Edge just send me a PM!
I'm no (Pro ) and have no training but just a Deep Desire to push them long !
Your 1000 yard goal is truly easy in my book !
Good luck in your choice !
Rum Man