Going Really big in the 30 cal.

[dragman]

If you were gonna go big in the 30 caliber for extreme long range hunting which would you go for?? I am really looking to compare the 300 RUM and the 30-378 Weatherby, but other suggestions are welcomed. Just thinking I might want something that can really maximize the range I can hunt.

 

[40X Guy]

May be tough to beat a .300 RUM for ultra long range hunting or target shooting. The RUM has proven to be somewhat inherently accurate in a rig with a custom barrel. I had mine built almost 2 years ago and love it. I have only shot it at 600 yards so far but it loves 208 A-Max's. There are several vids on Youtube about .300 Rum's being shot up to a mile. Make sure you have a brake installed. Also looking at powder charges between the 2, the 30-378 needs 10 more grains of powder to achieve a slightly faster MV with heavy for class bullets.
And I am pretty certain cost of brass is quite a bit higher than .300 RUM brass.


Frank

 

[bcarico]

Why not the 338/378 and shoot the 300 grain pills? Now that's some energy downrange.

Brandon

 

[dragman]

sticking in the 30 cal cuz I have a new 30" barrel 10 twist that I might want to play with. YES there will be a break on it and the gun should come in around 14lbs I don't want to much recoil. haha the. (40X guy) if it wasn't for brass price and the extra powder and you were staying 200 grains and over would you still go RUM??

 

[40X Guy]

Dragman, yes I would still go RUM as I think it will be a better shooter overall in the long run. My barrel is a 10 twist Brux and will not quite stabilize 240 MK's. I tried some in my rifle after seeing my friends .300 RUM stabilize the 240's in his Lilja barreled 10 twist but his barrel is 30 inches long whereas mine is 28.5. I have shot most weights from 178 to 220 and they all shoot good, I settled on 208 A-Max as they are a good combo of BC, speed and accuracy. And we are blessed to have a great selection of 30 cal bullets on the market. If you are contemplating 240's Sierra recommends a 9 twist.

Frank

 

[brian427cobra]

300 RUM shooting 225 Hornady BTHP at 3150 takes 15.1MRAD to 1 mile, I beleave the rounds are subsonic at that distance but impacts could be seen no problem, recoil was not bad, how far are you planning to kill stuff?

 

[wboggs]

I would go with the RUM over the Weatherby. Almost no gain for a lot more expense in dies, brass, etc. Put a long barrel on your rifle and have it throated properly for the long bullets. The new Berger215 Hybrid has a BC of almost 0.7 and the 230 is even higher. As you know, starting a bullet a little faster means it slows a little faster, so the small amount of the WBY gain in muzzle velocity is even less a difference at long range.
Used to have a .338-378 and it would not kill any better than my .338RUM and was no where near as accurate.
Just one man's opinion.

 

[mikegaiz]

The 30-378 Weatherby (Norma) is better brass. I have never had any luck with Rem brass lasting.

 

[clatarar]

what about going with a necked down and improved 338 lapua? brass life should be excellent with the 40 degree shoulder
you also have the case capacity to get the 240 smk's to 3500 fps, at the speed you need 14.5 moa to 1000 yards, 230 bergers would
be better....

 

[pmarauder]

If I was going to build one.... here is the route i would take and shoot the new 230 Hybrids. Check out this thread. I think Chad Dixon has the reamers and can make you the dies from the Newlon precision blanks.

http://www.beyond556.com/bboard/showthread.php?5736-300-skadi-300-norma-magnum-improved

 

[nhm16]

If I was going to build one.... here is the route i would take and shoot the new 230 Hybrids. Check out this thread. I think Chad Dixon has the reamers and can make you the dies from the Newlon precision blanks.

http://www.beyond556.com/bboard/showthread.php?5736-300-skadi-300-norma-magnum-improved

He shot that at the Bayou Rifles 1000yd long range match this past weekend. It is a beast, when the bullet hit the berm, you could hear/feel a noticeable thud.

 

[dragman]

so many idea's. I think RUM is in the works since it is a basically normal cartrage and shows real potential out to some good distances. I would like a 2000 yard ground hog gun and a 1500 deer rifle. (not claiming I have the talent to shot either) just wanna have the gun that can.

 

[wboggs]

I would like to see the load that could get 3500fps with a 240gr bullet in .308. The Lapua case probably has less capacity than the .300RUM.

 

[effendude]

I have several hunting .300 RUM's and love the cartridge. I have had great luck with the Nosler brass. Remington brass was ok, but the Nosler is prepped and perfect right out of the box. I also have a .30-378 Weatherby that shoots well but I really like the RUM better. Non-belted, huge case capacity with ample neck length makes it a winner over the belted mags. As stated above in other posts, the RUM is at a ideal case capacity for it's job. The .30-378 and larger cased wildcats burn much more powder for just a tiny bit more performance.
Scott

 

[effendude]

what about going with a necked down and improved 338 lapua? brass life should be excellent with the 40 degree shoulder
you also have the case capacity to get the 240 smk's to 3500 fps, at the speed you need 14.5 moa to 1000 yards, 230 bergers would
be better....

Say that again? With all due respect, I'd like to see proof of that speed, and at what pressure was it?
Scott

 

[wboggs]

Glad someone else noticed the 3500fps with a 240 .308 bullet in a "improved" Lapua case. I used to have a .338-378 that wouldn't remotely approach that with a 225 gr. .338 bullet. Not even close, even if you welded the bolt closed with the load.
Maybe he used a .50 Browning case necked down for a few shots befor the barrel was toasted.

 

[ebb]

Go with a 30 cal in a 338 lapua case. There are several versions Ive shot a 300 wolf and a 300 lapua. They have considerable more capacity than a Rum case. My 300 RUM shot good but dealing with the crap brass is a pain in the rear. My friend with the 300 wolf has loaded his necked down 338 lapua cases 12 times before they were toast. When building a new rifle i have 2 rules that i have learned the hard way to follow. 1 chambering must be something Lapua makes brass for or it can be fireformed to fit chamber. 2 Action must work with a jewel trigger

 

[2644ever]

I would probably wildcat the .375 Ruger case and I would short chamber that 30 incher with a tight .300 RUM reamer. The resulting case should hold around 105 grains of water and be more compact than the RUM thus fitting any standard action, barrel life would improve too.

 

[40X Guy]

In my RUM I am using the Nosler brass neck turned to a loaded diameter of .337 in my .340 neck diameter chamber. I bought a quantity of Rem. brass, and it was all over the place as far as weight of brass, neck thickness variations etc. It still sits in a bag in my load room. It is also a tad thinner than the Nosler brass.

Frank

 

[gmorganal]

I have a basic Sendero style Remington with a 28-inch Krieger, bedding job, Jewel trigger and a brake. All barrel work was done by Danny Huffman. I topped it off with an 8x32 NF NXS. During load workup, my last two three-shot groups at 520 yards measured 1.5 and 1.9 inches. I shoot the 210 Berger at 3,175 FPS and load Retumbo.

I am not challenging or intentionally disputing what others have said about the Rememington brass, but I guess I got lucky and got a good bag of 100 cases. I have had no problems so far. In fact, I have been really surprised with the consistency and function of the Remington brass.

During load workup at 100 yards, I started at 88 grains and worked up. As I moved up, it began to tighten up and finally shot a .145 three-shot group at 94 grains.

This chambering has exceeded all my goals for it.