DoneNOut
Well-Known Member
Reference post #12
338 Edge vs 338 RUM differences
- Thread starter Will83
- Start date
Help Support Long Range Hunting Forum
That's exactly what I used to call it!
I used to get once fired brass from the Remington plant for $.50 per. Guys would talk about brass life of Lapua and I would be like "Who gives a crap!"
Elk Hunter 338
Official LRH Sponsor
you quite possibly have the slowest 338 RUM on the planet ..or its a pistol...
the 338 lapua, 338 edge and 338 rum are basically ballistic triplets
Do you load for speed or accuracy? I'm sure I can run it up and not have the accuracy I want. And they are not ballistic triplets. Why would Shawn develop a identical round as the RUM? Why would he not use the 338 RUM brass? Not the same. Close but the 338 RUM is the slow one in this race.you quite possibly have the slowest 338 RUM on the planet ..or its a pistol...
the 338 lapua, 338 edge and 338 rum are basically ballistic triplets
Elk Hunter 338
Official LRH Sponsor
Shawn Carlock did the edge on the 300 rum because it first of the Rums ,,, he saw and opportunity too have a kick *** 338 and a standard mag bolt face, the 338 rum didn't come out until after he and many others necked up the 300 too 338, 358 , 375, 416 458..
I load everything the same way .. specially on big cases I've witnessed and shot 1000's of rounds through 338 rums, 338 edge's 338 lapua's 338imp 338 snipetac's 33XC's 338-378 Bee's just too name a few.. 1000's of rounds and they all tell me the same thing .. they will run slow and be accurate but what I and most other individuals have witnessed with big cases is the closer you get too there top end node they really come on and shine, lower Es's tighter and more consistent groups etc.!! same with big 7's big 30's big 375's
and there is not a 200 fps difference in either 3 when loaded correctly and to their most potential using identical components,.. when you have the ability too have all 3 at the same time its pretty easy too have information based on facts. they are ballistic triplets .. pick one have fun with it
Last edited:
EH338 if you have a load for the RUM that will get a 300 grain bullet to 2900 FPS please share and help a brother out. I can not get my 338 RUM to that speed with the 300gr. I have ran the RL33, N570 and currently H1000 with the best accuracy results. RUM 26 inch Carbon barrel weighs 8.8 with scope. Edge 30 inch barrel weighs 12.5 lbs with scope.
My 338 rum with 28" barrel moves 300eh at 2800fps(92.6 gr Nn570) VERY accurately zero psi. Topped out at 94gr 2894 w/ ejector marks. Would the edge get me to the next node of 2900? Yes but it'd be a warm load all the same with decreased barrel life. I'm very happy with my rum, feel no need for bigger 338, in fact in process of building a smaller 338 for pushing 250 elite hunter only. Based off a prc case.
Last edited:
Just get a .338-.378 Weatherby, holds more "BANG juice" than .338 RUM, Edge or Lapua!!!!
338-378 Weatherby = Case capacity: 125 gr H2O (8.1 cm3)
338 Lapua Mag. = Case capacity: 116.24 gr H2O (7.532 cm3)
338 RUM = Case capacity: 113 gr H2O (7.3 cm3)
No replacement for displacement!!! Nuff said!!!!
338 Lapua Mag. = Case capacity: 116.24 gr H2O (7.532 cm3)
338 RUM = Case capacity: 113 gr H2O (7.3 cm3)
No replacement for displacement!!! Nuff said!!!!
MagnumManiac
Well-Known Member
- Joined
- Feb 25, 2008
- Messages
- 5,564
I ran mine as a single feed.A Wyatt's 4'' box is a must or single feed.
This thread has lots of info;
338 RUM, Edge or Lapua?
I've been looking into building a long range boomer. I'm pretty much decided on a 338. Will use for deer, elk and Bear. Seems like most RUMs or Edges are in the 10 to 12lb range but looks like most Lapuas are in the 15lb+ range. I want a quality, accurate and shootable rifle with muzzle...www.longrangehunting.com
My other rifle in 338-416 Rigby Improved is also a single feed.
I could mill them for a longer box and fabricate one, but you can't feed from a mag where I shoot anyway.
My Edge with 300g OTM bullets topped out just over 2800fps even with the +P chamber, best I ever got out of it with HBN coated 300g OTM was 2848fps.
It appeared to me at the velocities obtainable that the 285g class of bullets were optimum. You really needed a faster cartridge for the 300g class bullets.
Cheers.
Lol just so we are all clear. Your edge is a 30" barrel (which is 200 fps faster) than your rum with a 26" barrel?
My 26" RUM can push 300gr atips just a hair under 2800 fps without pressure...I bet it could get to 2900 fps if my barrel was 30".
Congrats on the speed. I'm looking for accuracy.
There's an accuracy node at 2700-2720 and 2800-2820, another at 2900ish. Pick the powder that gets you to the one you desire.
Rhovee
Well-Known Member
- Joined
- Jun 29, 2017
- Messages
- 1,595
Highdrum is right. Nodes are almost always 90-100 fps apart. No matter the cartridge. I have a 338 Edge and it either shoots 2915 with N570 or 2820 with H1000. 28" barrel. The ADG 338 Edge brass is about 114 grains volume. I have also had a 338 NMI (110) grains volume. The Lapua brass is tough and she ran the same nodes as the edge. The pressure difference for same speeds could easily be the difference in the barrel.
