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jseines
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Meacham Hoch Action
Mar 1st, 2017 at 8:00pm
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I am looking for any information on the Meacham Hoch Action, i.e. what alloy was used in casting, what changes if any from the USA Hoch action...also is it recommended a heat treatment process...any and all information will be appreciated...I now have a "untouched" Meacham Action with plans to build a benchrest match rifle...Thanks/John
  
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jseines
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Re: Meacham Hoch Action
Reply #1 - Mar 2nd, 2017 at 1:57pm
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Thanks Joe for the quick reply...does anyone have a clear copy of the brochure Meacham published for his Improved Hoch Action ?...I found a copy on this site but could not read (eyes, age, ?)...I'm still no-joy on attempts to contact Steve Meacham...again looking for any information on his improved Hoch action...Thanks/John
  
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jfeldman
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Re: Meacham Hoch Action
Reply #2 - Mar 2nd, 2017 at 6:05pm
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John, I dug around and found a copy of Rifle mag from May/June 1993 that has an article by Frank de Haas on the original Hoch with a comparison of the later Meacham/Hoch.  He mentions that it could be had in either 8620 or 4140.   I could probably scan it and e-mail it to you if you'd like.  Let me know.          

Regards, Joe
  
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jseines
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Re: Meacham Hoch Action
Reply #3 - Mar 2nd, 2017 at 8:26pm
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Thanks, any and all information will be good...it will be interesting what "Improved" means ?... Thanks again
John
  
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frnkeore
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Re: Meacham Hoch Action
Reply #4 - Mar 8th, 2017 at 3:52pm
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Joe, this is SS:

Quote:
The Improved Hoch Action is available as a kit or as a finished action. Finished actions are available in in color case hardened S.A.E. 8620 polished heat treated S.A.E. 4140 (26 to 28 Rockwell C) or in 15-5 stainless steel.


Frank
  
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jfeldman
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Re: Meacham Hoch Action
Reply #5 - Mar 8th, 2017 at 10:49pm
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I have two of the flyers from USA Hoch kits - the first one says the actions are investment cast of either 4140 CM or 17-4 PH SS,  the second one says they are investment cast of 8620.  The eight actions bought by our club members were all 8620 and received in March 1989.

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jseines
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Re: Meacham Hoch Action
Reply #6 - Mar 10th, 2017 at 1:33pm
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Thanks for the quick reply's...now getting ready to chamber and mount a Ron Smith Barrel 22-11.5 g-twist...plan is to chamber in .32 Miller Short...before chips start flying I have several questions: 1) what is the optimum barrel length for the 32 Miller Short ? 2) what is the optimum bullet weight for this gain-twist barrel 3) and do I need to worry about where the choke is located in the barrel ?...been down that path with rimfire barrels from other makers...
Again thought I would check'in with the experts before chips start flying...Thanks/John
  
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desert-dude
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Re: Meacham Hoch Action
Reply #7 - Mar 12th, 2017 at 11:43am
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Being cheap and living in an agriculture area I just go to the CA (controlled atmosphere) purveyors of charcoal. They gave me a lifetime supply; eg. 5 gal bucket.

As to hardness: it looks like the hardness (as cast) lands someplace between annealed and normalized. Apparently the castings don't cool quite as fast as they would in air and are therefore softer. 

With 8620 my preference would be to carburize at what ever time/temp you like: depending on desired depth of case (harris equation) then cool still in the charcoal.
Reheat ( for me that is a salt bath) and then quench in oil.
This gives better strength and crack resistance than a direct quench into water. 
However, you won't get the pretty colors either. ;-(

  
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