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 Post subject: Reasons for Different Type of Forearm Latch Designs?
PostPosted: Sat Apr 20, 2019 12:56 am 
Presentation Grade

Joined: Sat Nov 30, 2013 8:21 pm
Posts: 592
So all current Perazzi O/Us have a Type 4 latch (I believe a "Deeley Release"), and if I recall correctly, this was an evolution over the Type 3 that was prone to cracking, but what are the advantages of this design over the design in earlier MT6s? (Which I believe is a form of an "Anson Release.")




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 Post subject: Re: Reasons for Different Type of Forearm Latch Designs?
PostPosted: Sat Jun 22, 2019 7:12 pm 
Tournament Grade

Joined: Sat Apr 20, 2019 2:19 pm
Posts: 160
Location: Second star to the right and straight on 'til morning.
From another thread “Type 3 uses screws in the fore end where as Type 4 has a machine bolt that threads into an insert.‘

I believe type 3 cracks were from users over tightening.


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 Post subject: Re: Reasons for Different Type of Forearm Latch Designs?
PostPosted: Sat Jun 22, 2019 10:53 pm 
Presentation Grade

Joined: Sat Nov 30, 2013 8:21 pm
Posts: 592
gentofleisure wrote:
From another thread “Type 3 uses screws in the fore end where as Type 4 has a machine bolt that threads into an insert.‘

I believe type 3 cracks were from users over tightening.

Re-read the original post.


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 Post subject: Re: Reasons for Different Type of Forearm Latch Designs?
PostPosted: Sun Jun 23, 2019 9:24 am 
Limited Edition

Joined: Tue Nov 01, 2011 9:32 am
Posts: 388
The type 4 can be tightened to control tension to the action. The type 3 can't.
Dave


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 Post subject: Re: Reasons for Different Type of Forearm Latch Designs?
PostPosted: Sun Jun 23, 2019 8:37 pm 
Presentation Grade

Joined: Sat Nov 30, 2013 8:21 pm
Posts: 592
Gunsmokesupply wrote:
The type 4 can be tightened to control tension to the action. The type 3 can't.
Dave

What about the MT6?


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 Post subject: Re: Reasons for Different Type of Forearm Latch Designs?
PostPosted: Tue May 05, 2020 10:00 pm 
Tournament Grade

Joined: Fri Dec 25, 2009 1:47 pm
Posts: 262
Gunsmokesupply wrote:
The type 4 can be tightened to control tension to the action. The type 3 can't.
Dave


That is done with an insert in the iron and has nothing to do with the screws.

"So all current Perazzi O/Us have a Type 4 latch (I believe a "Deeley Release"), and if I recall correctly, this was an evolution over the Type 3 that was prone to cracking, but what are the advantages of this design over the design in earlier MT6s? (Which I believe is a form of an "Anson Release.")"

The MT6 was an oddball when it was introduced and prevented the bozos from trying to put the round monobloc bbls on the MX8 actions. When everything got the square monobloc everything got the same release. Why double the # of parts that have to be made and stocked for no reason? And yes I know about the MX3 and that was later and different.


Last edited by Wonko the Sane on Tue May 05, 2020 10:17 pm, edited 1 time in total.

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 Post subject: Re: Reasons for Different Type of Forearm Latch Designs?
PostPosted: Tue May 05, 2020 10:07 pm 
Tournament Grade

Joined: Fri Dec 25, 2009 1:47 pm
Posts: 262
gentofleisure wrote:
From another thread “Type 3 uses screws in the fore end where as Type 4 has a machine bolt that threads into an insert.‘

I believe type 3 cracks were from users over tightening.


Actually they cracked cos the screws came loose. Poor maintenance lost or tossed those pesky lock screws and then the dumbos never bothered to check that they were properly tightened.
Type 1 and 2 will sorta interchange wood and Type 3 looks the same but the wood is not and does not easily interchange. In that era everything was individually fitted metal and wood and quickie interchangeability is possible but very unlikely. Everything needs to be fitted properly.


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 Post subject: Re: Reasons for Different Type of Forearm Latch Designs?
PostPosted: Wed May 06, 2020 2:07 pm 
Presentation Grade

Joined: Sat Nov 30, 2013 8:21 pm
Posts: 592
How is the tension to the action on the Type 4 adjusted? I'm guessing the big screw on the inside, but I don't see how it works.


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 Post subject: Re: Reasons for Different Type of Forearm Latch Designs?
PostPosted: Wed May 06, 2020 6:28 pm 
Tournament Grade

Joined: Wed Aug 06, 2008 8:13 am
Posts: 119
You can change the catch bolt which rests against the barrel lug. If you put a thicker one in, the action will be tighter. These should be fitted by a qualified gunsmith in order to obtain the correct angle of the catch bolt surface that fits against barrel lug.

Oliver


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 Post subject: Re: Reasons for Different Type of Forearm Latch Designs?
PostPosted: Tue May 19, 2020 11:22 am 
Tournament Grade

Joined: Fri Dec 25, 2009 1:47 pm
Posts: 262
oldnnp wrote:
You can change the catch bolt which rests against the barrel lug. If you put a thicker one in, the action will be tighter. These should be fitted by a qualified gunsmith in order to obtain the correct angle of the catch bolt surface that fits against barrel lug.

Oliver


Yes - part #322 on the schemo available at Jim White's site S&W Supply JIC the link below gets lost. I have found Jim to be a great resource as well as a simply fine person

https://www.swsupply.com/downloads/Pera ... cesUSA.pdf




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