300 Rum Build (Root Rifles Build)

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I have somewhat of an infatuation with the 300 Rum, so I decided to build another one. This rifle was put together by Garret Schmidt at Root Rifles in Montana. His attention to detail and being very meticulous about his machining has produced a rifle that is outstanding to say the least. I picked this rifle up at lunch today, mounted the scope and decided to get it on paper with no expectation of shooting a group. Just shoot, clean, let it cool, and repeat. First shot was 8 inches high (first shot ever out of the rifle) Made a scope adjustment and shot 3 shots at 1/2 MOA, maybe just inside, also that's a pistol target. Haven't even done load development, just took some hand loads from one of my other 300 Rums and went to my 100 yard range. All I can say is wow. Rifle was shot laying on the bed of my truck at 104 yards with an Atlas Bipod and a rear bag. 300 Rum,210 Accubond Lr, Fed 215 match primer, H1000, ADG Brass. Scope was set at 16 power. Muzzle jump was surprisingly minute, cross hairs jumped to about the top of the target at 16 power and 100 yards. So should be able to easily maintain sight picture past 300 yards. Honestly not a bad scope but we will see how it holds up. Needless to say can't wait to see how this bad boy is going to shoot as I
continue with barrel break in and working towards load development for this rifle. I honestly believe it will shoot .3 or less, depending on if I can keep my excitement level down. Can't say enough good things about how the machining was done, the fit and finish, and the smoothness of this rifle.

This wasn't an over the top build as far as some consider.
Factory Remington 700 Action Trued
Bdl Bottom Metal Extended Mag Box
Proof Sendero 26 inch barrel 1-9 twist
Garrett s titanium 3 port break (12 year old can shoot this rifle)
ADG Alpine hunter stock bedded
Trigger Tech Special set at 2 Lbs (had it laying around)
Talley rings
And a I'll give one a try Athlon Ares BTR Gen 2 4.5x27x50 FFP
Total weight 9.6 Lbs including bipod

 

[Sevens]

Nice rifle. Curious though, when you say "another try" on the Athlon, what issue did you have before?

 

[TopPin]

Nice rifle. Curious though, when you say "another try" on the Athlon, what issue did you have before?

Stated I'll give one a try. never shot one before. Don't know much about them so that's why I'm giving them a try. So far seem like a solid option.

 

[Jnm300ultra]

Nice looking rifle, with a bonus it shoots sub moa. I bet you can't wait to take it hunting.
Jason

 

[TopPin]

Nice looking rifle, with a bonus it shoots sub moa. I bet you can't wait to take it hunting.
Jason

Ohh she's going to be meaner than an ex wife with something to prove!

 

[Sevens]

Nice rifle. Curious though, when you say "another try" on the Ath, what issue did you have before?

Stated I'll give one a try. never shot one before. Don't know much about them so that's why I'm giving them a try. So far seem like a solid option.

Ha, reading comprehension was never my strong point.

 

[TopPin]

Nice rifle. Curious though, when you say "another try" on the Ath, what issue did you have before?

Ha, reading comprehension was never my strong point.

Lol no worries I didn't use proper grammar!

 

[TopPin]

Well I got to excited…. But she sure is a shooter.

 

[mdmiller]

Nice rig!!
Keep breaking the barrel in, it may get tighter!!

 

[skipglo]

Great looking rig...but I have only one question......how long did it take your wife to clean the kitchen before you took the picture? Nice kitchen Brother!

 

[Duramaxfxr]

Following

 

[TopPin]

Well load development has been fairly easy very impressed with how this rifle is performing. I'm considering stopping here. First test group at 300 yards. Now it's time to stretch the legs out and see how she does on steel, then off to testing bullets on game. Can't wait to start the elk hunts!
Testing a new line of bullets out of this rifle, all I can say is it's 196 grains mono, backed by H1000 and Fed 215 Match primers, and ADG brass. From previous test and hunts with a 6.5 version of this bullet, it should be an amazing performer on Elk. I'll be honest wasn't sure how I'd feel about all copper bullets, but the accuracy with this one so far in testing seems to be a great combination.

 

[TopPin]

Well after a few days of testing a new bullet, and trueing the drop data I finally got to see how this rifle performs with a 196 copper prototype. So far the speed was shockingly impressive leaving the muzzle at 3356 FPS with no pressure signs and a standard deviation of 8.6 fps. Very pleased with that on virgin ADG brass. To be honest my main concern with anything is performance on game, and so far it's a winner.
The new 300RUM has performed flawlessly, and the accuracy has been excellent. The first bull, without snow in the photo was harvested at 486 yards by my good friend Meagan. She continues to stays true to being the queen of one and done. Harvesting yet another bull with a 300RUM. If you zoom in you can see 3 different exit wounds on her bull. Bull shot quartering towards, bullet path entered behind front shoulder and passed thru the lungs, liver, and finally exiting mid stomach.
The second bull in the snow was harvested quarter ing away at 381 yards, with a photo of what was left of the lungs.
The whitetail was harvested by Jakalin who is smaller than most 4th graders at a height of 4'11 and probably 112 lbs with her boots filled with water. Not a long shot to some but was 260 yards.
Point being when you have a well balanced rifle, a solid muzzle break, anyone in my opinion can shoot a 300 RUM. To me it is not as much of a recoil problem when they are built correctly as the noise due to the break that is intimidating to shooters. When the Can finally shows up it will be even more of a joy to shoot.
Looking forward to more product testing and trigger time behind this rifle. Plenty of season and tags left to fill. Happy Hunting

 

[crkckr]

While I don't own a 300 RUM (I have a .338 Win Mag for elk), I do reload for my buddies 300 RUM and I'll have to say I love the caliber and I'm envious of his Rem. 700, which has a barrel very similar to an expensive custom barrel, pretty surprising for a factory barrel! The rifle shoots the Nosler 200 gr. Partitions very well and brass life is surprisingly long! I neck size until the brass starts to get a bit difficult to chamber then FL size once, then go back to neck sizing. I've got Rem. brass that's been fired 15 or more times during load development, which doesn't include any bunny fart loads at all! I know not all factory barrels are going to be this nice (personally I think it's a fluke) but one can always wish, which costs nothing! I know he's taken deer at some fair distances (400+ yards, no elk as yet) but personally, I much prefer to get as close as possible when hunting. Absolute best shot is to sneak up on them while they're in their beds 25 yards away but I like to be prepared for that 400 plus yard shot, too! This caliber can do it all and other than the expense of components at the present time, I do love the cartridge! I wish they'd of had them when I started shopping for an elk round back in the '70's!
Cheers,
crkckr