Yep, you can always go the 338 Edge route. 338 Edge uses the 300 RUM brass and can achieve more FPS than the 338 RUM. For some reason the 338 RUM has the shortest brass length of the RUMs. I believe the 7, 300, & 375 use the same length of brass. I also think the 300 RUM brass is easier to get...
After browsing the Remington website, I don't see any rifles currently in that caliber. Start with local dealers, try Gun Broker (got my 375RUM - new from there). Just an FYI, brass for the RUM calibers is getting hard to find. I've been buying whatever SPS lists Nosler 338RUM brass.
Just throwing this out there, but H414 gave me excellent results in my 30-06 using 180ABs. The load is 55.5gns, Fed 210M primers, Nosler brass, COL of 3.39".
Here are my LR rifles.
From L to R, 7mmRUM (150ET), 300RUM (200AB), 338RUM (250AB), 375RUM (260AB):
I am considering a thumbhole stock for the 338RUM though, dang thing kicks like a large mule, needs a little more weight to it, plus the XCR stock is not much for eye candy.
Greg, here's my 7 RUM recipes:
Bullet Powder & charge Primer COL Brass & Trim
150ET Retumbo 91 GM215M 3.655 Rem 2.83
160AB Retumbo 91 GM215M 3.635 Rem 2.83
Regardless of magazine length, there's no way I can get the above two bullets even close to the lands on my Rem 700 SPS...
I have a 375RUM, it's the Remington LSS model (laminate stock, stainless). It is a tad heavy, not quite as much as my thumbhole stocked 300RUM, but I find it just as easy to shoot as my 300RUM. My 375RUM is pushing 260ABs at 2990 FPS.
My 300RUM has become pretty much my main rifle. I like how it feels and it's easy to shoot, but does get a little heavy at the end of the day though.
Wow, looking at picture I took, I've had it 9 years now..... :shock:
I'm going to develop a load next spring using Nosler 338RUM brass and 250ABs. Managed to get 200 pieces of their 2nd brass through SPS. Dang spendy stuff..... :shock: :shock: :shock:
Lot of good info here. I've contemplated getting some 30 Cal 190 ABLR 2nds from SPS to try in my 300RUM, but I keep thinking why???? The 200ABs have performed exceptionally well, every animal they have hit has gone down quickly. Why mess with something that works? Plus, where I hunt and shot all...