Cycling issues

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Shecky556
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Cycling issues

Post by Shecky556 » Sun Jan 21, 2018 10:10 pm

I own an FNX 45 Tactical and I've put plenty (1500+) of rounds through it with zero issues feeding. Put my brand new Thompson Machine Poseidon can on it (wet) and it will not cycle. Either stove pipes or failure to eject completely. Using 220gr blazer brass. Any thoughts? Anyone have similar issues with that can?

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doubloon
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Re: Cycling issues

Post by doubloon » Sun Jan 21, 2018 11:58 pm

Since the Poseidon doesn't have a booster it can cause problems on some guns.

There have been a few people in the past who've had problems, I've never had a problem with the Poseidon on my P229 or P226 shooting 147gr or 115gr ammo.

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johndoe3
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Re: Cycling issues

Post by johndoe3 » Mon Jan 22, 2018 12:44 am

You might have to reduce the recoil spring from the factory 17 lb. A few other people have reduced theirs to 13 lbs to reliably shoot downloaded ammo (and your situation when using the suppressor is similar). A Google search will net you instructions on what they did.

First, you might try +p ammo and see if it cycles OK.
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Shecky556
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Re: Cycling issues

Post by Shecky556 » Mon Jan 22, 2018 2:40 pm

Thank you gentlemen for your responses. Follow up question, is this a common issues with sub sonic large frame handguns? Or is it more suppressor specific issue?

OJB4
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Re: Cycling issues

Post by OJB4 » Thu Feb 08, 2018 1:45 pm

johndoe3 wrote:You might have to reduce the recoil spring from the factory 17 lb. A few other people have reduced theirs to 13 lbs to reliably shoot downloaded ammo (and your situation when using the suppressor is similar). A Google search will net you instructions on what they did.

First, you might try +p ammo and see if it cycles OK.

I'd try the spring option listed above. If you do please let us know how it works. I also own a FNX 45 Tac and would be curious should I run into a similar problem if using a different can than my Octane 45 or Liberty Miranda

Thanks
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ECCO Machine
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Re: Cycling issues

Post by ECCO Machine » Fri Feb 09, 2018 3:17 am

You're not trying to run without wipes, are you? You need that back pressure with it not having a recoil booster.
FFL07/02SOT Gunsmith & Machinist

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doubloon
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Re: Cycling issues

Post by doubloon » Fri Feb 09, 2018 8:50 am

My Poseidon runs fine with wipes on the P226 and P229.
http://www.youtube.com/watch?v=BDtd2jNIwAU MUSAFAR!
http://www.youtube.com/watch?v=8CrOL-ydFMI This is Water DavidW
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