Which Magnum for Long Range?
06-13-2016, 06:10 PM
#21
Giant Nontypical
Join Date: Mar 2006
Location: ****ifornia
Posts: 5,052
yeah the 338 rum is 100 thou shorter than the 7mm or 300 rum, just like the 300 winny is 100 thou longer than the 264 and the 338 winny's. as Adam said the 338 edge is just a simple neck up, not sure what the difference is in the +P version, the 338/300 Rum IMP. is known as the 338 O'Brian.
RR
RR
06-28-2016, 09:13 AM
#22
Nontypical Buck
Thread Starter
Join Date: Oct 2009
Location: Kansas
Posts: 3,902
Another wrinkle...
I recognize this is a step backwards, since it's a bit slower and I'd be stuck with Hornady brass, but anyone ever played with a 338-375 Ruger?
To keep it inside a standard long action at 3.34", I'd have to push the shoulder back a bit, giving up a little capacity. Not sure how far I could neck down without pushing the shoulder back before the neck would get too short yet, but I'd try to run it as long as possible given the brass. I'm speculating around 2850fps with a 250grn pill out of a 24" tube, pick up a bit if I go longer barrel (which I plan to). I'd guess I'd hang around 98grn H2O in the case - so giving up quite a bit to the Edge and Lap, basically splitting the difference between those and the 338WM.
Maybe it's just the Ruger fanatic in me coming out, as there's really no reason to wildcat off of a such a new proprietary case, other than it'll be a little easier working south of 3.6" COAL. I've done ok feeding .416Ruger out of 300wm mag boxes - keep the COAL short enough on a 338-375R, I can feed it from a DBM.
Thoughts?
To keep it inside a standard long action at 3.34", I'd have to push the shoulder back a bit, giving up a little capacity. Not sure how far I could neck down without pushing the shoulder back before the neck would get too short yet, but I'd try to run it as long as possible given the brass. I'm speculating around 2850fps with a 250grn pill out of a 24" tube, pick up a bit if I go longer barrel (which I plan to). I'd guess I'd hang around 98grn H2O in the case - so giving up quite a bit to the Edge and Lap, basically splitting the difference between those and the 338WM.
Maybe it's just the Ruger fanatic in me coming out, as there's really no reason to wildcat off of a such a new proprietary case, other than it'll be a little easier working south of 3.6" COAL. I've done ok feeding .416Ruger out of 300wm mag boxes - keep the COAL short enough on a 338-375R, I can feed it from a DBM.
Thoughts?
