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Mar 25th, 2012
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.300 UM fans? #6954684
11/10/17 09:51 PM
11/10/17 09:51 PM
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Dallas, TX
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syncerus Offline OP
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Has anyone seen a fan of the .300 Ultra Mag in the wild? Do they really exist?

Inquiring minds want to know why you like the .300 UM. What practical advantage is there over the other .300 magnums?


NRA Patron & DSC Lifer
Re: .300 UM fans? [Re: syncerus] #6954687
11/10/17 09:53 PM
11/10/17 09:53 PM
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Re: .300 UM fans? [Re: syncerus] #6954689
11/10/17 09:54 PM
11/10/17 09:54 PM
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I'm under 6' tall that's why I like it. Just figured I would clear the air before someone asks.

Re: .300 UM fans? [Re: syncerus] #6954697
11/10/17 10:01 PM
11/10/17 10:01 PM
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Winters
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It has legitimate uses. Most find it impractical for typical Texas whitetail hunting, but it really shines for delivering energy at extended ranges.


Re: .300 UM fans? [Re: syncerus] #6954714
11/10/17 10:15 PM
11/10/17 10:15 PM
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Lewisville, TX
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The problem with the RUM is controlling that energy. It's the only cartridge I will not guarantee less than MOA accuracy with on my load work ups. It's a very finicky round. I'm not a fan. I have seen several high end custom rifles shoot very with it. It likes the heavy bullets, 200+ grains.



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Re: .300 UM fans? [Re: syncerus] #6954725
11/10/17 10:25 PM
11/10/17 10:25 PM
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Frisco, Texas
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going to help a guy sight in his 7mmRUM , pretty much extinct. he doesn't like it ever since the safety split his thumb open when he shot it


"I ain't here for a long time, I'm here for a good time"
King George Strait


Re: .300 UM fans? [Re: syncerus] #6954819
11/10/17 11:49 PM
11/10/17 11:49 PM
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I know one guy that uses one. He said he bought ten or fifteen years ago when the RUM cartridges where more common. He wanted more power because he lost an elk that he shot with a .270.

I've never had any interest in it because it is so much more expensive than 300 win mag and ammo choices are more limited. It is better, I just don't think it's worth it. That extra 250 fps doesn't make it an elephant rifle so I don't see the point. It's still an elk rifle.

Re: .300 UM fans? [Re: syncerus] #6954912
11/11/17 01:15 AM
11/11/17 01:15 AM
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bowie tx
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168 berger in mine love it shoots great

Re: .300 UM fans? [Re: syncerus] #6955013
11/11/17 02:55 AM
11/11/17 02:55 AM
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Wolfe City, TX
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Ran one out to 1700 yards in September. It didn't do so well less than 200 yards, but past that, it did pretty well.



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Re: .300 UM fans? [Re: syncerus] #6955024
11/11/17 03:06 AM
11/11/17 03:06 AM
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Chambers County
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Originally Posted By: gusick
I know one guy that uses one. He said he bought ten or fifteen years ago when the RUM cartridges where more common. He wanted more power because he lost an elk that he shot with a .270.

My bet is it wasn't the 270's fault. confused2

Re: .300 UM fans? [Re: syncerus] #6955565
11/11/17 04:57 PM
11/11/17 04:57 PM
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Poor cartridge design,hungchow due COAL,with any bullets that matter...............

Re: .300 UM fans? [Re: Busheler] #6956017
11/11/17 10:17 PM
11/11/17 10:17 PM
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Originally Posted By: Busheler
Poor cartridge design,hungchow due COAL,with any bullets that matter...............


LOL!!!

Thousands and thousands of critters would disagree with you.

Re: .300 UM fans? [Re: syncerus] #6956021
11/11/17 10:18 PM
11/11/17 10:18 PM
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Busheler Offline
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There's been farrrrrrrrrrr more killed with 22LR. Hint.

Say a little sumptin' about twist rate,throat geometry and magbox COAL latitude...it'll be FUNNY.

Hint...............

Re: .300 UM fans? [Re: syncerus] #6956025
11/11/17 10:22 PM
11/11/17 10:22 PM
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Opinions are like ********. Hint

Re: .300 UM fans? [Re: syncerus] #6956027
11/11/17 10:23 PM
11/11/17 10:23 PM
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That's why I don't express "opinions" and simply speak matter of factly,because FACTS just "happen" to matter.

Hint..............

Re: .300 UM fans? [Re: syncerus] #6956189
11/12/17 12:02 AM
11/12/17 12:02 AM
Joined: May 2013
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Frisco
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Had one in a Sendero (added a Wyatt's box for +P COAL )shooting tbe 190 Berger at 3200 - 3250.
It makes things deader fo sho.
Way too much gun for deer and coyotes.

Re: .300 UM fans? [Re: syncerus] #6956331
11/12/17 01:47 AM
11/12/17 01:47 AM
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Winters
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Those poor rifles. Somebody take the Krylon from Hint boy, before he does that again!


Re: .300 UM fans? [Re: syncerus] #6956363
11/12/17 02:10 AM
11/12/17 02:10 AM
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Rifles get USED in these parts and sometimes you just gotta RE-Blue one.





Hint..............(grin)

Re: .300 UM fans? [Re: syncerus] #6956377
11/12/17 02:23 AM
11/12/17 02:23 AM
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Reblued. Haha! I like it.


Re: .300 UM fans? [Re: syncerus] #6956397
11/12/17 02:40 AM
11/12/17 02:40 AM
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I go through more than a few barrels...................(grin)

Re: .300 UM fans? [Re: syncerus] #6956401
11/12/17 02:42 AM
11/12/17 02:42 AM
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1-8" 6 Kreedmire.



Prefer my 1-7" and a 700 based platform.

Hint...............

Re: .300 UM fans? [Re: syncerus] #6956420
11/12/17 03:00 AM
11/12/17 03:00 AM
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New Braunfels, TX
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Good buddy of mine had a really nice .300 RUM built about 8-9 years ago. He never could get it shooting the way he expected it to. Spent a lot of time and $ experimenting with different handloads to end up with about the same groups as my straight-out-of-the-box .270 Win. It would punch a hella big hole in stuff, though...

Re: .300 UM fans? [Re: syncerus] #6956429
11/12/17 03:08 AM
11/12/17 03:08 AM
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Terminal Effects/"holes" are a function of projectile selection,more than cartridge selection.

The Impact Velocity spectrum of a 300 Ultra and a 270 Win,are rather alike,though projectile mass is different.

Most folks are wayyyyyyy over headstamped,wayyyyyyyy under bulleted and wayyyyyyyyy over X'd in magnification...none of which does any favors,regarding Connect Percentages.

Hint..............

Re: .300 UM fans? [Re: syncerus] #6956466
11/12/17 03:34 AM
11/12/17 03:34 AM
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Midlothian, TX
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I love the 300 RUM especially with 230 bergers, it does like to burn barrels though. Im still trying to get my hands on some bertram brass for it, but norma will have to do till then. I was getting 2985 out of my 300 RUM with a 26" barrel with the 230 gr berger hybrids, not sure what it will do now since its at the smith getting overhauled with a 28" carbon wrapped barrel.

Last edited by cmorsch; 11/12/17 03:37 AM.
Re: .300 UM fans? [Re: syncerus] #6956468
11/12/17 03:39 AM
11/12/17 03:39 AM
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What are the particulars of the platform?
Action?
Barrel?
Twist?
Throat?
COAL latitude?
Loaded length?
Base/rings?
Glass?

Pics are always nice...............

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