338 Ultra Mag

[JohnH]

New Gun:
I have not reloaded for some time and I am not up to date with all the info concerning this new firearm. Could some one please help me on this, bullets, powder, best ballistics, and any and all help will be a help. I live in Alaska, so I wanted a gun to cover all game, deer, caribou, blck bear, moose, elk and the brown bear, so the bullet start @ 160 and go to 300, so ive not found to much on this caliber yet and will await some ones comment .The help would be appricated.
Thanks, JohnH

[jro45]

Well John I use H1000 powder and got my load information from accuratereloading.com hope this helps you out.

[DANTEC]

338 cal is very flexible and a evry good caliber xcept in Africa where seely regulation in most country allow only caliber bigger than 375 !!!!even if your load is anemic !!!

210 Nosler in light side can do the job on most species

275 bullet weight as Speer GS is good for heavy game

if you reload you can try to match two trajectory specialy if heavy bullet are use only in short range , I have never be in Alaskan ( I wish but need time ) but pictures doesn t look as AZ desert so open long range shooting seem difficult so that better to try to reach good balistic up to 300 meters only

good shooting

DAN TEC

[JMac]

I have two 338 RUMs and use a 250 grain bullet( Nosler Partition or Hornady SP) and either 91 or 93 grains of Reloader 25, set off by a Federal Large rifle magnum primer.

Sorry I never did much work with lighter bullets.

Joe.

[Mark_in_utah]

My .338 RUM likes a 250 grain Gameking on top of 83.2 grains IMR4831 and CCI 250 primers. Got a 9/16" pattern, which is a ragged hole with this guy. The 225 grain Accubond couldn't do much better than a 7/8" pattern at 3054 fps using 91.4 grains of WC852(s). I want to try a 250 grain Partition and MK's to see how they'd do.

Mark in Utah

[Mark_in_utah]

As an addition:

My gun did NOT like 200 grain Speers, or 225 grain Hornadys. It seems happier with heavier bullets.

Had some severe fouling problems and had to fire-lap the barrel, but that's a whole different thread....

Rem 700 LSS with a Vais brake, pillar bedded.

I'm wondering how hard is it to get used to the recoil of .338's this big? I love the .338 Lapua and am looking at building one on a .338 Ultra Mag Sendero. What barrel length should I go for?