7mm Remington Ultra Mag

cockeyed · #1 01-02-2012, 09:46 PM

I've been interested in the purchase of a 7mm RUM and I am having a hard time finding the caliber. Remington makes a 7mm RUM in the model 700, laminated stock and stainless steel 26" barrel. Reloading data and eqpt is hard to find, obviously not a very popular caliber because of the powder capacity, powder density, recoil and cost. It's the smallest of the ultra family and I love shooting the 7mm Rem Mag. I also understand it's a little tricky for the reloader. Any body have any thoughts about the 7MM Rem Ultra Mag?

wolfman403 · #2 01-02-2012, 09:53 PM

Save yourself the aggrivation and go with the remington 300 UM. Kicks a little but if you have to put a brake on it. Tames it down alot

bchap22 · #3 01-02-2012, 09:54 PM

A buddy of mine has one in a sendero and says it will shoot one hole at 100 yards. Its definitely a long bomber.

elkhunter11 · #4 01-02-2012, 10:11 PM

I have owned three 7mmstws as well as one 7mmRUM, and two 300RUMs. I found handloading for the 7mmRUM no more difficult than for other cartridges. Reloading data is actually quite common with Nosler,Alliant, and Hodgdons having data on their sites or in their latest manuals. Dies and brass are also not hard to find if you look around. However, after using the 7mmRUM, and the 7mmstw, I much prefer the 7mmstw, as the 7mmRUM gains very little more in velocity, and the barrel heats up even faster, and barrel life is even shorter than with the 7mmstw. It seems that the .284" bore is just too small to take advantage of the large capacity offered by the 7mmRUM. My opinion on the 7mmRUM is this, if you are a well above average shot, and are willing to practice regularly at long distance to be able to take advantage of the extra bit of velocity that the 7mmRUM provides, and you are willing to accept the relatively short barrel life, the cartridge is an excellent long range cartridge. If you are the two or three boxes of ammunition per year shooter, it isn't going to gain you anything over the 7mmremmag. As for the 300RUM, it does quite well with the larger .308" bullets, but the recoil is noticeably more, and once again, it offers little advantage for the average shooter.

Speckle55 · #5 01-02-2012, 10:20 PM

Quote:

Originally Posted by elkhunter11

I have owned three 7mmstws as well as one 7mmRUM, and two 300RUMs. I found handloading for the 7mmRUM no more difficult than for other cartridges. Reloading data is actually quite common with Nosler,Alliant, and Hodgdons having data on their sites or in their latest manuals. Dies and brass are also not hard to find if you look around. However, after using the 7mmRUM, and the 7mmstw, I much prefer the 7mmstw, as the 7mmRUM gains very little more in velocity, and the barrel heats up even faster, and barrel life is even shorter than with the 7mmstw. It seems that the .284" bore is just too small to take advantage of the large capacity offered by the 7mmRUM. My opinion on the 7mmRUM is this, if you are a well above average shot, and are willing to practice regularly at long distance to be able to take advantage of the extra bit of velocity that the 7mmRUM provides, and you are willing to accept the relatively short barrel life, the cartridge is an excellent long range cartridge. If you are the two or three boxes of ammunition per year shooter, it isn't going to gain you anything over the 7mmremmag. As for the 300RUM, it does quite well with the larger .308" bullets, but the recoil is noticeably more, and once again, it offers little advantage for the average shooter.

Good Info well put

gopher · #6 01-03-2012, 07:24 AM

You will be well served with either cartridge like elk says 7RUM or 7STW. Recoil is non-issue with these two cartridges weather you shoot a lot or a little Barrels should be about the last thing on your mind IMO if you fire 50 rounds a year you have nothing to worry about a barrel is going to last your life time. If you fire 1000 rounds a year you are a rifle loony and buying barrels is fun. 162gr A-max@ 3300 FPS stomp the 6.5 magnums !!!

elkhunter11 · #7 01-03-2012, 01:58 PM

Quote:

Barrels should be about the last thing on your mind IMO if you fire 50 rounds a year you have nothing to worry about a barrel is going to last your life time.

If you only shoot 50 rounds per year, you likely won't maintain the shooting skills that are necessary to take advantage of the extra velocity provided by the 7mmSTW or the 7mmRUM.

gopher · #8 01-03-2012, 02:12 PM

Quote:

Originally Posted by elkhunter11

If you only shoot 50 rounds per year, you likely won't maintain the shooting skills that are necessary to take advantage of the extra velocity provided by the 7mmSTW or the 7mmRUM.

After a good load is worked up for a good long range rifle and ranges are verified I would like for you to explain to me how trigonometry can change.

Lefty-Canuck · #9 01-03-2012, 02:19 PM

Quote:

Originally Posted by gopher

After a good load is worked up for a good long range rifle and ranges are verified I would like for you to explain to me how trigonometry can change.

EH11 was referring to the "nut behind the bolt" factor and not the actual potential of the cartridge in his comments.....thats how I read it.

Quote:

Originally Posted by elkhunter11

If you only shoot 50 rounds per year, you likely won't maintain the shooting skills that are necessary to take advantage of the extra velocity provided by the 7mmSTW or the 7mmRUM.

LC

gopher · #10 01-03-2012, 02:23 PM

Quote:

Originally Posted by Lefty-Canuck

EH11 was referring to the "nut behind the bolt" factor and not the actual potential of the cartridge in his comments.....thats how I read it.

LC

Again explain to me how simple trigonometry can change

Lefty-Canuck · #11 01-03-2012, 02:25 PM

Quote:

Originally Posted by gopher

Again explain to me how simple trigonometry can change

....you still don't understand the point he was trying to make....

Ill pose the question to you....how do you factor a shooter's shooting skills into the equation?....based on trigonometry?

Show me the equation you are using to calculate

LC

gopher · #12 01-03-2012, 02:43 PM

Quote:

Originally Posted by Lefty-Canuck

....you still don't understand the point he was trying to make....

Ill pose the question to you....how do you factor a shooter's shooting skills into the equation?....based on trigonometry?

Show me the equation you are using to calculate

LC

So to have shooting skills you must wear a barrel off a particular rifle I did not know that.

The difference is those that dial and those that don’t

savage shooter · #13 01-03-2012, 03:20 PM

WOOSH! Right over your head!

Lefty-Canuck · #14 01-03-2012, 04:11 PM

Quote:

Originally Posted by savage shooter

WOOSH! Right over your head!

X2....

I am glad someone gets it

LC

Lefty-Canuck · #15 01-03-2012, 04:12 PM

Quote:

Originally Posted by gopher

So to have shooting skills you must wear a barrel off a particular rifle I did not know that.

The difference is those that dial and those that don’t

Did I make any comment of the sorts? I personally have never worn a barrel off any of my rifles but I feel as though I am quite a good shot when it comes to hunting and paper punching.

.....it is ok if you didn't catch the intent of what EH11 said and what I tried to explain. It is kind of like some jokes that are told....not everyone "gets it"....

LC

cockeyed · #16 01-03-2012, 06:13 PM

I looked up a recoil table for the 7mm RUM and it is considerable, a 162 Gr Bullet at 3200 fps will generate a little over 29 PSI. A 7MM Rem Mag is around 19 PSI. With a limb saver recoil pad and shortening the butt of the rifle to compensate for the extra length, I think the recoil can be controlled. The 300 RUM is way up there with 32 PSI. I never was a 30 caliber fan. I have shot long ranges for several years now. I'm surprised no one has mentioned the Berger Bullet, I shoot a 168 Gr out of my 7mm Rem and I am very impressed with it's performance. The critters don't run far. I hate tracking animals.

twofifty · #17 01-03-2012, 06:21 PM

29, 19 and 32 PSI ???

elkhunter11 · #18 01-03-2012, 06:47 PM

Quote:

EH11 was referring to the "nut behind the bolt" factor and not the actual potential of the cartridge in his comments.....thats how I read it.

And that is how it was meant to be taken.

cockeyed · #19 01-03-2012, 09:09 PM

Use Google and check out the Rifle Recoil Table produced by Chuck Hawks, the numbers I used was from the column "Recoil Energy", I assume he is talking about pounds per square inch of recoil at the shoulder?

elkhunter11 · #20 01-03-2012, 09:14 PM

Quote:

Use Google and check out the Rifle Recoil Table produced by Chuck Hawks, the numbers I used was from the column "Recoil Energy", I assume he is talking about pounds per square inch of recoil at the shoulder?

Try FT LBS.

Mad_Mikee · #21 01-04-2012, 07:44 AM

I have a 7mm RUM that I shoot a 160gr. Accubond out of. I spend a lot of time shooting various rifles at longer distances (not just this particular rifle).

I bought the 7mm RUM at the time because I was only shooting a 30-06 for hunting. Most of the shots in the new area I was hunting were typicall 400+ yards.

I kept my 30-06 sighted in for 100 yards and was comfortable shooting it out to 250'ish. With my 7RUM I sighted it for 300 yards and with my LR duplex I was comfortable shooting out out past 600 (off a bipod or a solid rest).

I look at rifles as tools. The job just seems easier to do sometimes when you're using the right tool. Sure you can shoot a deer at 500 yards with a 30-30 but it's much easier with something else.