Looking to get me a Sendero in one of these 2 for a neat lil Long range hunting rifle that will also group well..What do YOU like and Why? I will handload...Thanks!

I own the great Remington 7 mm Mag that I have shot to 600 yds and was right on target

Never owned an UM but am on my third STW. This is an awsome round, it actually goes a lot faster than the 7 MM Rem. I never shoot light bullets in mine, in my first ones I used the 162 Hornady for paper and the 160 Noslers for hunting. Now I shoot the 160 TSX. They are an extremely accurate bullet and very flat shooting. My current gun is a factory Stainless Classic rechambered. It does 3300 fps. in 24" and averages well under 1 MOA. Sorry no input on the 7 UM but I can highly recommend the STW.

I have a stock model 70 classic, in the STW.
Mine is the most acurate rifle I own.
But in all honesty , I am sure the rum is just as good a round.
Also its getting kind of hard to find stw brass.
But I would say six to one half dozen to the other.
And although the STW is faster than the rem mag , not by much more than 100 fps. in my experence.
And for what its worth the stw is a pussycat on my shoulder even with the skinny little winchester recoil pad.
You can't go wrong with your choices here, if it does,nt shoot good there is a problem with the rifle, not the round...tj3006

At similar pressures with available powders each cartridge has enough case capacity to push a .284" projectile near its practical limit. The slightly larger case of the RUM doesn't add any significant velocity in this caliber, but it doesn't create any issues that don't already exist with the STW.

Buy the one you like. The performance of the individual gun will vary more than that of the two cartridges.

I have experiance with the STW, several around here use them. Flat & accurate are the best descriptives.

Which ever one makes you fell warm and fuzzy. Both shoot equally flat and accurate for all practical purposes. In identical rifles, the advantage would go to the STW because it will hold one more down. Lou

I think the 7RUM was a mistake on Rem. part, it's just way overbore. You can get within 50fps shooting a STW & use less powder. If you want to go w/o the belted case, then I would go 7mm Dakota.

I have a 7RUM and could never get it to shoot groups smaller then nine inches. (no it is not that I’m just a bad shot, it shot like that in a vice with 2 different scopes and 3 different shooters) sent it back to Remington who said their was nothing wrong with it and sent it back. I would go with the 7 STW, I am planning on using my 7 RUM action to build a 358 STA.

Thanks guys! I do know I am going Sendero 26" and if it doesnt group,may rebarrel to 28"...My Custom Gunsmith likes both.."shoots like a laser" and gets 3600+ with his RUM w/139 interlocks!He has plenty brass and will load them for me,so it looks like a 7mm Ultra...Again,Thanks!

safari you will be happy with her i'm in process on a 7stw now i read about it years ago and decided i wanted one but the rem will be good also probally more brass available for it

I'll take the STW.

quote:

the advantage would go to the STW because it will hold one more down. Lou

Good point, Lou. In fact, some magazines for a belted magnum will hold 4 down, and some for the RUM series will only hold 2 down. People sometimes overlook the advantage of having an additional shot or two in your magazine. Not often, but on several notable ocassions, for me it has meant the difference in taking an animal home and having it escape wounded.

.270 Win.

I have got 3 7mmSTW's - One Remington & 2 Sako 75's. Love the STW & that would be my choice - accurate & super long range. My personal thought was that the 7mm Ultra was even more overbore !!

I have owned both a 7mm Remington Magnum as well as a 7mm Remington Ultra Magnum. I have never owned a 7mm STW. If and when I buy another 7 Mag, it will be another 7mm Reminton magnum. A plain old 7mm Reminton Magnum loaded with a good 160 grain bullet will do everything you want it to do and it is a lot easier to get them to shoot. Usually, right out of the box, they will shoot 3/4 inch at 100 yards. I had to really tinker with my Ultra Mag ot get it shoot.

Dave

Im useing the 154 Gr Hornady Interbond in my sako 75 7mm stw, only just finished load developement, I did not try any other bullts as this is the one I want to shoot in this gun just juggled powder and charge weights.

Very high BC for the Hornady Interbonds.

I shoot an accurized Model 70 Classic Stainless STW.

The thing's just freakin' unbelievable!! It's as close to a "one-holer" at 100 yards as I've seen in a belted magnum. The velocities I get from 140 gr. Accubonds are insane. I load 1 grain of 7828 under whay Layne Simpson calls max. and will get a hair over 3600 fps on a warm day......3580's when it's cooler. Brass life is good. I have shot it benched to 600 yards. It's just a joy to shoot a rifle that whacks what you're aiming at no matter how far it is.

quote:

Originally posted by SAFARIKID:
Thanks guys! I do know I am going Sendero 26" and if it doesnt group,may rebarrel to 28"...My Custom Gunsmith likes both.."shoots like a laser" and gets 3600+ with his RUM w/139 interlocks!He has plenty brass and will load them for me,so it looks like a 7mm Ultra...Again,Thanks!

You won't be disappointed with your 7mmRUM, mine shoots great, and Barnes are bringing out a 120TTSX.......that will be a laser!

Wow,120 STX..How fast can we get that one and hows the BC?

quote:

Originally posted by SAFARIKID:
Wow,120 STX..How fast can we get that one and hows the BC?

Not sure of the speed but Barnes says .373 BC.
If half of what is being said is true, the TTSX in light weight and high velocity is a quick killer.
Theoretically in your 7MM RUM, +/- 4000 should obtainable.

I know you've decided but I vote for the STW. I have fallen in love with mine and I can't belive how accurate several different loads are and how far I can shoot with it. Then again my other guns are 270 win and a 257 Roberts.

Having owned three 7mmstw rifles(still own two),three 7mm remmag rifles,and one 7mmultrammag,I prefer the 7mmstw.I find that the 7mmstw adds over 200fps more than the 7mmremmag,and the 7mmultramag adds only another 75fps or so over the 7mmstw.

One advantage to the 7mmRUM is the fact you can load it BACK to STW velocities; that can be a blessing if the bedding is suspect/non existent in the rifle.......then it will tend to shoot better at lower pressures, as does a rifle straight from the factory.

With 168 to 180 grain bullets, how much does the RUM give over the STW. I am in this predicament for a long range gun also.

i have aslightly customized 7rum which is dead accurate, 0.5 MOA @200 yds,with NF bullets, likes Retumbo and 140 gr bullets.

I have shot five 7mm Ultra mags for buddies, I could get none of them to shoot with my STW, even after much tweaking and dozens of loads. Good shooting

my vote 7-STW,shot this round when it was still a wild-cat still shooting it today.

idea, if you can't find a sendero in a stw buy a 7mm-rem-mag and get it re chambered to STW, you will have your new rifle with a new cut chamber that will shoot great.
regards

quote:

Originally posted by phurley5:
I have shot five 7mm Ultra mags for buddies, I could get none of them to shoot with my STW, even after much tweaking and dozens of loads. Good shooting

Were they all factory barreled RUMS, phurley5?

Bloody interesting, how and the why rifles will and won't shoot.

I have had custom barreled STW and RUM and the edge goes to the RUM.........in fact I made up a varmint contour barrel for long range 'roo busting

Blair338/378 ----- My rifle is a off the shelf Model 70 Winchester Laredo. All the buddies rifles were off the shelf Remingtons. My rifle will shot one holers when I do my part, I could not get the others to do better than 3/4 inch groups. All scopes were comparable. I did all the loading myself with the same powders and bullets. Good shooting.

I think the Winchester Laredos had H-S Precision cut rifled barrels in them......

I've had a 7mm, 300 and 338 RUM cartridges and they have all been great shooters.

Trying a 6.5 RUM soon

Blair338/378 ----- I am not knocking the RUM's, and considered the 3/4 inch groups that I got from a couple of the 7mm's I shot quite good, irregardless what rifle or chambering they came from. However, in the end, none of them would match my STW. As to the barrel of the Winchester, I have no idea what barrel the Laredos had, but I would venture a guess that an off the shelf rifle did not have a custom barrel on it. I would certainly stand to be corrected if they did. Good shooting.

I shot a 7mmRemMag exclusively for over 20 years,a and was never disappointed with its performance. For mule deer at long ranges, it is difficult to imagine something better, since I can't hold steady enough in the field while actually hunting to appreciate the slight ballistic advantage of using more horsepower than the 7mmRemMag offers.

Having said that, I've never owned an STW. However, somebody at my range was struggling with his 7mmRUM. His was complaining aloud about the "patterns" it was shooting. I asked if he would mind if I took a few shots with it. That factory rifle with factory ammo put 3 shots into .4", with two of the holes overlapping! If I wanted maximum horsepower in a 7mm, that's hard to beat!

My rem 700 (stock) gives MOA groups or better up to 200 yds with the RIGHT LOADS. It loves NF 140 gr and 160 gr failsafe bullets, seated .005 short of the lands.

quote:

Originally posted by Auke Bay LT:
I have a 7RUM and could never get it to shoot groups smaller then nine inches. (no it is not that I’m just a bad shot, it shot like that in a vice with 2 different scopes and 3 different shooters) sent it back to Remington who said their was nothing wrong with it and sent it back. I would go with the 7 STW, I am planning on using my 7 RUM action to build a 358 STA.

quote:

Originally posted by phurley5:
Blair338/378 ----- I am not knocking the RUM's, and considered the 3/4 inch groups that I got from a couple of the 7mm's I shot quite good, irregardless what rifle or chambering they came from. However, in the end, none of them would match my STW. As to the barrel of the Winchester, I have no idea what barrel the Laredos had, but I would venture a guess that an off the shelf rifle did not have a custom barrel on it. I would certainly stand to be corrected if they did. Good shooting.