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Max Online: 16728 @ 03/25/12 08:51 AM
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#6890348 - 09/17/17 08:42 PM How much effect does pressure have on barrel life?
Smokey Bear Online   content
Bird Dog

Registered: 05/11/17
Posts: 401
Loc: Texas
While I was waiting for my rem mag to cool between groups yesterday I shot my 223 bolt gun. I have a low pressure Varget load that shoots pretty good and an IMR 8208 XBR load that is .3 grains below pressure signs that shoots lights out. I usually shoot the Varget load and reserve the XBR for serious target work, which for me is not that often. I'm an experienced shooter and reloader and shoot a good bit. I'm also fairly new to this site. It appears there is a lot of knowledge and experience here. Particularly shooters that take it a lot more serious than me.
On to my question: would you roll with the high pressure load full time and not worry about a shorter barrel life and a load that had its back to the wall, or go easy on a sweet shooting little varmint gun and save the high pressure load for times you are serious about it? How does the brain trust weigh in?

I shot Varget out of it for the most part yesterday, but did shoot a three shot group with the XBR. I just learned how to post pics and there are some targets still in my range bag. I will mark up a couple targets and take a couple pics.

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Smokey Bear---Lone Star State.

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#6890374 - 09/17/17 08:57 PM Re: How much effect does pressure have on barrel life? [Re: Smokey Bear]
patriot07 Online   content
Veteran Tracker

Registered: 11/06/11
Posts: 2064
Loc: Royse City, TX
How far are you shooting? 100 yards - roll with the light load. Past 300-400 yards - I'd probably shoot the faster stuff.

Either way - nice shooting!

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#6890401 - 09/17/17 09:33 PM Re: How much effect does pressure have on barrel life? [Re: Smokey Bear]
Smokey Bear Online   content
Bird Dog

Registered: 05/11/17
Posts: 401
Loc: Texas
I shoot coyotes with it mostly and pop a couple does in the bean each year. It is a light sporter that I usually shoot 55 grain bullets at 300 and closer.
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Smokey Bear---Lone Star State.

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#6890844 - 09/18/17 10:27 AM Re: How much effect does pressure have on barrel life? [Re: Smokey Bear]
ChadTRG42 Online   happy
THF Celebrity

Registered: 09/16/09
Posts: 11932
Loc: Lewisville, TX
Out of a 223, I wouldn't worry too much about it. Run whichever you like for that application. 223's have decent barrel life already, so a hotter load would be fine.
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#6890897 - 09/18/17 11:09 AM Re: How much effect does pressure have on barrel life? [Re: Smokey Bear]
Jgraider Online   content
Tracker

Registered: 06/13/15
Posts: 732
Loc: West Texas
To the OP's direct question, higher velocities + higher pressures. Can't have one without the other. Higher pressures = shorter barrel life.

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#6900162 - 09/26/17 08:44 PM Re: How much effect does pressure have on barrel life? [Re: Smokey Bear]
earl39 Offline
Outdoorsman

Registered: 01/01/17
Posts: 70
Loc: South Arkansas
Don't remember exactly but read once that barrel life can be calculated by the amount of powder put thru it. Has a lot to do with heat and how hot for how long at a time. Every time you pull the trigger you are in essence putting a plasma torch down the barrel for a microsecond.
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"And you shall know the truth, and the truth shall make you free.” John 8:32 (New King James Version)

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