Is 140 grain bullet moving 3500fps to fast for a 26in barrel? I guess my question is could it hurt the life of the Barrel?
thanks

GOD HAS BLESSED AMERICA!

As long as you don't let the barrel get to hot, it should last a little while. I would not shoot more than three rounds without letting it cool. If you burn out the barrel, you will just have to buy a better one. Good Luck.

Edited by - handloader1 on 08/19/2002 22:47:24

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Barrels do not wear out but rather erode from pressure and temperature(sort of like flame cutting with a torch)in the throat area just ahead of the chamber.The hotter you let the barrel get the faster it erodes.If you do not let the barrel heat up(shoot three shot groups and let the barrel cool) you should expect peak accuracy for about 1500 rounds with this type of cartridge.My 7mmstw's both shoot 140 gr bullets at right around 3500 fps and provide 1/2" groups while doing it.

To give a 140-grain 7mm bullet a muzzle velocity of 3500 FPS, you are burning a "prodigious" amount of powder. Such a load will result in a destroyed barrel faster than one using less powder and giving lower velocities. As the folks above have pointed out, if you let your barrel cool well between shots, you will extend its' life to some extent, perhaps even doubling it. But, under the best of circumstances, I predict you will still need a new barrel in 1500 shots OR LESS with such a load!! What cartridge is this? A 7mm STW, 7mm Rem. Ultra, or something with comparable case capacity??

Keep yore powder dry!!

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Is 140 grain bullet moving 3500fps to fast for a 26in barrel? I guess my question is could it hurt the life of the Barrel?
thanks

It is in a 7mm Ultra Mag.

GOD HAS BLESSED AMERICA!
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GOD HAS BLESSED AMERICA!

The 7mm Rem. Mag. has a rep. for being hard on barrels. The 7mm Ultra would have to be worse!! But, barrel life is something you are willing to sacrifice for the increased performance, n'est ce pas? If not, get a 7X57 Mauser!!

Keep yore powder dry!!

ditto to what eldeguello said.....
you don't get something for nothing. If you want screaming velocities, you pay for it in shortened barrel life... but... how many years will it take you to shoot 1500 rounds? And, rebarrelling is pretty cheap... just look at it like putting new tires on your car.. the faster you drive, the more frequently you replace them... And if you're really in love with your barrel, when the throat gets too worn, just have a gunsmith set the barrel back a few threads and rechamber... you lose about a half inch of barrel length, but you save about 150 dollars... in the grand scheme of things, that's pretty cheap....

&quot;Progress, far from consisting in change, depends on retentiveness..those who cannot remember the past are condemned to repeat it.&quot; Santayana

hornetguy, &quot;&quot;Progress, far from consisting in change, depends on retentiveness..those who cannot remember the past are condemned to repeat it.&quot; Santayana.&quot; &quot;....those who CAN remember the past are condemned to repeat it ANYWAY.&quot;

Keep yore powder dry!!

Lets see, a loud, bouncing meat tearing up fat seven if I shaot 100 rounds thru it before I rebarreled to something with a bore diameter that matches the case size it would be a miracle. Heck I probably wouldn't even shoot it.