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Author Topic: Maxi fixed  (Read 480 times)

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Offline revbc

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Maxi fixed
« on: August 03, 2010, 01:30:31 PM »
Finally with Tim's help have solved the FTF in the maxi.  Thanks Tim!!!!
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Offline quickdtoo

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Re: Maxi fixed
« Reply #1 on: August 03, 2010, 01:33:05 PM »
You're welcome Bobby, glad ya got it fixed.  ;)

Tim
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Offline Spanky

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Re: Maxi fixed
« Reply #2 on: August 03, 2010, 02:36:20 PM »
What did it take to fix it?



Spanky
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Offline revbc

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Re: Maxi fixed
« Reply #3 on: August 03, 2010, 02:53:37 PM »
It took .010 shim behind the extractor post and the extractor post thinned (filed down).  Two tiny pieces of DP can JB welded behind the post.  The DP can is .0045 thick.  This holds the cartridge flush with the barrel face eliminating the excessive head space that I had.  Don't know if the rim was cut to deep by the factory or me when I reamed to maxi.

Bobby
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Offline petemi

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Re: Maxi fixed
« Reply #4 on: August 03, 2010, 04:31:04 PM »
Ya know, I don't care what my grandmother used to say about him, but I really do think Tim is worth his salt.  I vote to keep him around a while......even if he doesn't like my .44LC shrunk from the cold ;D :D ::)

Pete
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Offline Austinite

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Re: Maxi fixed
« Reply #5 on: August 04, 2010, 12:07:21 PM »
Revbc - The same thing happened when I reamed out for .357 Max.  Using Tim's reamer, I went just a little too far.  The result was the cartridge seated just a little bit too deap, and I got FTF about 50% of the time.  It's completely my fault - I should have marked the base of the chamber so that I wouldn't remove any material from this area.  Just a dumb moment. 

I read about the fix from Tim on another thread - adhere some material to the base of the extractor to push the cartridge back out a bit.  I've not had a FTF since the fix (but w/out shooting .357 max yet). 

My question to anyone - does the extra headspace that this gun has result in the gun being less safe to fire?  Since the fix, I've fired with .38 and .357 mag without a problem, but I've been reluctant to fire the higher pressure .357 max.    Should I be worried? 
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Offline quickdtoo

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Re: Maxi fixed
« Reply #6 on: August 04, 2010, 12:39:16 PM »
A lot of rimmed barrels have had deep rim cuts right from the factory, my 357Mag extractor barrel is no exception, so it's not necessarily caused by reaming too deep. Ejector barrels were never been a problem because the ejector spring holds the round against the breech face eliminating the FTF, but extractors don't without modification, so FTFs have become more common. Excess headspace on the rimmed rounds will result in flattened primers, but isn't particularly an unsafe condition. But combined with a short firing pin stroke, it's a PITA. :-\

Tim
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