smokepoledoug

I read in my Speer reloading manual that the Remington 7 mm magnum was bad to develop throat erosion. Is there anything to this and if their is how many rounds does it take to develop this problem?

stubblejumper

A 7mm rem mag barrel will last several thousand rounds if not overheated by rapid fire and it is cleaned properly.Modern barrel steels are much better than they used to be and the 7mm is not known as a barrel burner.

Rem. 222

Doug,
No more than the average shooter will shoot a 7mm Mag it should last a couple of lifetimes. Like Stubble said if you don't shoot it until the barrel is glowing red and maintain it properly, you should be okay.

Rem. 222

smokepoledoug

Thanks guys, the reason I wanted to know was that I now have a .270 and a .30-06 and I was thinking about getting a magnum. I have some friends that say the 7 mag drops em dead quickly for them. I inherited brass and loaded sheels when my brother died a few years ago but he no longer had the rifle at the time. Really I love guns so much that I think I am just looking for a good reason to buy another one.

boltman

If you can shoot the barrel out of a 7mm rem mag then you've done some pretty good work and should reward yourself with a new barrel. The new barrel will be a heck of a lot cheaper than the money spent on all the ammo it took to burn out the first barrel. However, if I had a 270 and a 30-06 I don't think I'd be buying a 7mm rem mag, what one of them will do either of the others will as well. I'd probably step up in size to a .375 H&H or down in size to a neat little .257 roberts.

1SHOT_1KILL

Under normal shooting and hunting conditions, the throat on a 7mm Rem. mag should last a good many years. It ought to be good for atleast 3,000-4,000 rounds. Under heavy shooting, the throat may experience carbon build up. This carbon build up may be very difficult to remove, as it may chrystalize. If it chrystalizes, no bore brush and solvent will get it out. The only way to remove it is with an abbrasive compound like J&B Bore cleaning compound.

limb-hanger

the problem you heard about probably had to do with the 7mm stw. that caliber has had that problrm for years but, and for the average hunter the barrel will still last him a long time

riflenut

smokepoledoug, I realize this won't answer your original question but if you have a 270 and a 30-06 you certainly won't gain,much with a 7 Rem Mag.It's pretty close to the 270 with lighter bullets and with the heavier 175's it's a bit ahead of the 30-06 but not much.I have or have had all three.With those two calibers in the rack your better off to get a 338 Win Mag.

stubblejumper

The 7mm mag is flatter shooting and a step up in power over the 270.As for comparing it to the 30-06 you should compare bullets of equal sectional densities like the 7mm 150gr or 160gr to the .308 180 gr in which case the 7mm is a fair bit flatter shooting again with an increase in energy.The 7mm 175gr is closer in sectional density to the 200 gr .308 and again shoots noticeably flatter.