Home Forums Hunting & Shooting Long Range Hunting 300RUM...Good or bad thing?

I love my 338RUM. Not a plinker, but with 210xlc's, it's all business.

I like them too, just not for extended long range sessions..;o) Flinch

Flinch, Have ya compared the great 7mm against anything else while not using the wonder bullets? mtmuley

Sure Flinch will chime in


But sure!Coming from just before th last Ice Age, I've fired slews of Nosler Partitions and Sierra's to 600 yards from 7 mags, 300's up through the Weatherby,and 338's and 340's.

From a trajectory standpoint,start a 160 7mm NPT at 3100,alongside a 30 cal 180 at the same vel, the 7mm will slightly out do it.

And a 175 7mm at the same velocity, will stay with a 180 30 cal started at 3200 or so....and in my rifle it only takes 73 gr of powder to get it there,vs 85-95 or so in the 300 RUM or 300 Weatherby.

The 210's from the 338 are falling off the map by then....

You're making me like my 7mm Dakota even more Bob

A 175 grain Accubond would absolutely rock!

I getta kick outta the 162 humping the Window Lickers up.

That boolit squarely rates building a rifle around...............

Think I built it....3200-3250 might not be needed....but I'll take it!...got the 162's here now

Doug the Dakota IS the Mashburn....

Uh yes, that would be affirmative. Toss a 162 AMAX out of the 7mm mag a 3,100 fps and light stuff up WAY out there. This bullet absolutely rocks as a big game bullet, especially at extremely long range (That would be 800-1,200 yards for the window lickers...love that term). If you are shooting beyond that regularly, then the various .338's do come into their own in payload delivery. The various .300's won't keep up with the 162 AMAX in 7mm. That bullet is like a needle going through the air. Many .30's will beat it out to 600 yards, but fall behind after that. I am not bashing anyone's favorite .300 something or .338's. Just stating facts. You don't need big to shoot long. Flinch

Well, since nobody really answered you...

Your 300 RUM as a cartridge has real potential. Good move on the Jewell. That scope should work. Forget the booster.

In the rifle world, the gap between a rifle & cartridges potential, and reality, can be... problematic. You need a very accurate rifle to even begin the game of true LR shooting. To that end, handloading is your friend, big time. You are also going to need to put a lot of rounds downrange to get from where you are now to where you want to be. A LOT. As in, plan on toasting that barrel in the next year! Again, handloading is your friend here. Even if you are made of money I gotta thing $50/box ammo will slow you down...

Finally, neither of the ammo choices you listed are good choices. Perhaps you are hung up on trajectory. Forget that. Trajectory is easy to compensate- gravity being well-understood and all- but wind is not. You need to be looking for bullets with a high BC, which usually means heavy-for-caliber. If you like Nosler, the 200-gn Accubond has a BC of .588, darn good for a "harder" bullet. It works very well for me from a 300 WM. Others to look hard at are the 208 Amax (.648 BC) and the Bergers.

So here's what you need. Turrets on your scope if they aren't there already. An RCBS Master Reloading Kit and a 300 RUM die. Don't know what powders to advise in a RUM but others will. Order some 200-AB's, 208 Amax, etc and find a scary-accurate load. Now get out and SHOOT that cannon for the 1500 rounds or whatever that barrel gives you. Rebarrel. Repeat.

Being that I just built a LR rifle in 7.


1000 yards.

300 RUM 155 Scenar 3,500 mv.....19 MOA
7mm REM 162 Amax 3,100 mv.....22.5 MOA

And just for kicks.
300 WSM 155 Scenar 3,330 mv......21.5 (I've tested this one to 1000 yards)

Besides being accurate anyone who has doubts about the validity of the Scenar bullet on big game need only ask, or see, Scenarshooters experience.

That bullet is also heck on armor plate at distance. I don't think it will have any problem on heavy shoulders.

In the 7Remmie/300Whizzum extrapolation,I'd take the nearly foot of wind slipping and 100fps+ impact speed and near 200lbs of energy.

The RUM had better trump a 2.5" H&H.

Kidding about the "energy" making a [bleep] to me...that was for the Window Lickers.(grin)

Crossed fingers,in regards to both a .257" and .284" Scenar lineup...............

Have you ever shot a 208 AMAX at 3100 fps? Facts are facts, unless they're not.

In fairness,I'd say it takes a bigger case,to launch the 208 at like 162 speeds.

Thoughts?.................(grin)

Of course it does. In this thread about the 300 RUM he said "the various 300's" which obviously includes the 300 RUM.

And why I built the 7.

Still, my wiz in the A7 with M1's is nothing to dis.



.284 Scenars would be game changers.

I'm really thinking they can smash bone like a X.


Window lickers always fall for the engergy boost. lol...

These are The Good Old Days,shame more cain't know it in advance.............

In fairness, the higher BC of the 208 makes up neatly for 100 fps in velocity.

This is why I was able to prove you wrong on that 7-08/.308 thread, though it's yet to sink in apparantly.

Check it. What's that you like to say... Oh yeah, JBM don't lie.........

In case it's not obvious, that's two lines there... right on top of one another....

In the .284" - .308" extrapolation of the 162 to 208,that 46grs of weight difference,is but a 100fps void at like pressures,in chamberings of like capacity?

I DO love it,when you fire that [bleep] Imagination of your's up and start "proving" [bleep]! It could only get better,if you'd of never shot any of the boolits cited in your "Proving Grounds".

Oops!.............

Wouldn't wanna lose your nugget................