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Rough bore primer poppers???
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Picture of bartsche
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bewilderedOn two of my resently acquired Mod. 200 Stevens rifles I've blown primers with loads that seem just fine in other rifles. Further the amount of time it takes to remove copper and clean these barrel is exhorbatent by a lot.

Could these rough bores be the cause of the over pressure? are there any cases evidence of this happening? Are there any test results indicating this?

I realize there can be many causes of popped primers, but a greater restriction than normal to the bullet moving down the barrel indeed would increase the pressure build up in the rifle's chamber and barrel.

Is there anyone out there that has experienced this? Frownerroger


Old age is a high price to pay for maturity!!! Some never pay and some pay and never reap the reward. Wisdom comes with age! Sometimes age comes alone..
 
Posts: 10226 | Location: Temple City CA | Registered: 29 April 2003Reply With Quote
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Picture of hivelosity
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I have not seen any articles about this but i agree with you thought.
I shot a lot of 45/70 black powder lead bullets and the one guy I shot with for a while
talked about putting a choke in the barrel to increase pressure, he thought it would improve the internal ballistics?
I would however check the head space just to make sure.. something may have changed ouer pressure loads could have set the bolt back.
 
Posts: 2134 | Location: Ohio | Registered: 26 June 2000Reply With Quote
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Excessive copper fouling can cause high pressures.

Very high pressure, thin-cupped primers, or long firing pins generally cause punctured primers.

What are you loading in those 200s?
 
Posts: 2650 | Location: Lakewood, CO | Registered: 15 February 2003Reply With Quote
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Picture of hm1996
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quote:
Further the amount of time it takes to remove copper and clean these barrel is exhorbatent by a lot.


I purchased a Savage FP10 in 223 which was a tack driver out of the box. It did, however, foul the barrel quite badly for the first 40-50 rounds. Now it is one of my least fouling barrels, so there is hope.

Regards,
hm


2 Chronicles 7:14:
If my people, who are called by my name, will humble themselves and pray and seek my face and turn from their wicked ways, then will I hear from heaven and will forgive their sin and will heal their land.
 
Posts: 932 | Registered: 21 September 2002Reply With Quote
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quote:
Originally posted by MickinColo:
What are you loading in those 200s?


The two that are giving the most grief are a .270 and 22-250. The .223 ain't thatgreat either. Frownerroger


Old age is a high price to pay for maturity!!! Some never pay and some pay and never reap the reward. Wisdom comes with age! Sometimes age comes alone..
 
Posts: 10226 | Location: Temple City CA | Registered: 29 April 2003Reply With Quote
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Maybe the David Tubb Final Finish bore lapping bullets are worth a try? I've read good things about them and have a box for my .243 waiting for a trip to the range.

LWD
 
Posts: 2104 | Location: Fort Worth, Texas | Registered: 16 April 2006Reply With Quote
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That's odd, I have the stevens 200 in .223 and use it a lot for shooting varmints. No pressure problems, no fouling isues, and it shoots real well.

Hope you resolve your issues. Oh, and yes, if you do have excess copper build up it can cause higher pressures.
 
Posts: 583 | Registered: 28 May 2007Reply With Quote
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Hey Roger, You are the MOST Snake-Bit Savage owner I've ever known. At least it keeps everyone else from getting the BAD ones. nilly

You might want to check the end of the Firing Pin, or maybe swap it out with one of the other ones to see if it could possibly be creating the situation.

And of course, quit yanking the Trigger so hard!!! moon
 
Posts: 9920 | Location: Carolinas, USA | Registered: 22 April 2001Reply With Quote
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Picture of N. S. Sherlock
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I presume you meant primers blown out of the case. That's pressure for sure. Those savages all have long firing pins and heavy springs. How the pin fits the hole and tip shape and protrusion are all important to check if its primer piercing.


"Make yourselves sheep and the wolves will eat you" G. ned ludd
 
Posts: 2374 | Location: Eastern North Carolina | Registered: 27 August 2003Reply With Quote
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Roger,

I wished I were there to see in person what’s going on. You said the following.

quote:
I've blown primers with loads that seem just fine in other rifles


That makes me suspicious about the firing pins but may not be the only answer, like I said I wished I was there to see what’s going on.

PS,, Where’s your dad? I haven’t seen him post for a while.
 
Posts: 2650 | Location: Lakewood, CO | Registered: 15 February 2003Reply With Quote
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quote:
Originally posted by MickinColo:
PS,, Where’s your dad? I haven’t seen him post for a while.


My dad went to the happy hunting grounds over twenty years ago. dancingroger


Old age is a high price to pay for maturity!!! Some never pay and some pay and never reap the reward. Wisdom comes with age! Sometimes age comes alone..
 
Posts: 10226 | Location: Temple City CA | Registered: 29 April 2003Reply With Quote
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Damn! How time flies!
 
Posts: 2650 | Location: Lakewood, CO | Registered: 15 February 2003Reply With Quote
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quote:
Originally posted by N. S. Sherlock:
I presume you meant primers blown out of the case. That's pressure for sure. Those savages all have long firing pins and heavy springs. How the pin fits the hole and tip shape and protrusion are all important to check if its primer piercing.


No piercing just popping, Winkroger


Old age is a high price to pay for maturity!!! Some never pay and some pay and never reap the reward. Wisdom comes with age! Sometimes age comes alone..
 
Posts: 10226 | Location: Temple City CA | Registered: 29 April 2003Reply With Quote
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