Gmac multi shot 18" Maximus.

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leadslinger

Post subject: Gmac multi shot 18" Maximus.

Posted: Sun Dec 11, 2016 4:17 pm

Joined: Mon Aug 08, 2016 7:23 am
Posts: 4259
Location: Somewheres near the Atlantic

I decided to make a multi shot Maximus. I used Gmac 2240 multi shot breech. I just had to tap a 4-48 hole for the breech screw. The SSG is was a 2300 RVA that I modified. 18" barrel from the custom shop. Has a disco hammer spring.

The stock Maximus TP was 0.115 and the one from the Gmac kit was .148"

Tomorrow I plan to start tuning the SSG but with the 26" barrel I was able to get 24 shots at 21 FPE.

Need a muzzle brake to make it flush with the fill.

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Hobbyman2007

Post subject: Re: Gmac multi shot 18" Maximus.

Posted: Mon Dec 12, 2016 7:32 am

Joined: Tue Feb 18, 2014 7:24 pm
Posts: 974
Location: Dowling ,ontario

Nice job on the breech . Any reviews on the breech seeing as it's pretty close to the more expensive BNM due to the exchange rate.

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I like air guns , and they like me

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leadslinger

Post subject: Re: Gmac multi shot 18" Maximus.

Posted: Mon Dec 12, 2016 8:33 am

Joined: Mon Aug 08, 2016 7:23 am
Posts: 4259
Location: Somewheres near the Atlantic

Hobbyman2007 wrote:

Nice job on the breech . Any reviews on the breech seeing as it's pretty close to the more expensive BNM due to the exchange rate.

I paid like 232 shipped from GMAC, with a barrel band. It came with a 10 shot benjamin mag as well. Its well made, only issue I'm having right now is none of the CP or cheap chinese scope rings will clamp hard enough. So the scope still slides around. I even tried flipping the clamp.

I want to get a muzzle brake to take the difference in the barrel.

Started to tune the SSG as best as I could w/o sights. Be interesting on the shot count with a much larger Transfer port.

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