tx200hc low power

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captbarb67
Posts: 6
Joined: Mon Jun 12, 2017 9:23 pm

tx200hc low power

Mon Jul 10, 2017 7:28 pm

Hi I have a mk2 tx200hc that was low on power so striped and re lube power was back up to 11.6 ft lbs but it's back down to 8.5ft lbs I've had it for about 20 years should I be replacing all the seals and piston or could it be something else.

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Blackbaronfish
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Joined: Sun Feb 15, 2015 6:20 pm
Location: Nuneaton

Re: tx200hc low power

Mon Jul 10, 2017 9:32 pm

I would be wanting to put in a new piston seal if it hasn't been done for twenty odd years....you owe it that at least :lol: :geek:
They do tend to form up a bit

BBF
Did I mention that I'm the only one to have attended EVERY annual meet since we started

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gary martin
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Joined: Thu Feb 19, 2015 8:21 pm

Re: tx200hc low power

Mon Jul 10, 2017 9:41 pm

Blackbaronfish wrote:I would be wanting to put in a new piston seal if it hasn't been done for twenty odd years....you owe it that at least :lol: :geek:
They do tend to form up a bit

BBF

I would add breach seals too.

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captbarb67
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Joined: Mon Jun 12, 2017 9:23 pm

Re: tx200hc low power

Tue Jul 11, 2017 6:56 am

Okay will do that do I need to measure spring length as well and where is the best place to get these seal from.

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Blackbaronfish
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Joined: Sun Feb 15, 2015 6:20 pm
Location: Nuneaton

Re: tx200hc low power

Tue Jul 11, 2017 10:58 am

Julian Bond the site owner. You will find a thread in the sales section

BBF
Did I mention that I'm the only one to have attended EVERY annual meet since we started

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captbarb67
Posts: 6
Joined: Mon Jun 12, 2017 9:23 pm

Re: tx200hc low power

Tue Jul 11, 2017 11:59 am

Okay will do all apart and polished up

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captbarb67
Posts: 6
Joined: Mon Jun 12, 2017 9:23 pm

Re: tx200hc low power

Tue Jul 11, 2017 5:03 pm

I have a different piston seal on my rifle than the original it's a solid ptfe that screws onto the piston 25mm diameter 7mm long
does any body know where I can purchase one of these I have contacted Julian about the parts but no response yet.

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captbarb67
Posts: 6
Joined: Mon Jun 12, 2017 9:23 pm

Re: tx200hc low power

Tue Jul 11, 2017 5:05 pm

I have a different piston seal on my rifle than the original it's a solid ptfe that screws onto the piston 25mm diameter 7mm long
does any body know where I can purchase one of these I have contacted Julian about the parts but no response yet.

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Roj 252
Posts: 13
Joined: Mon Aug 14, 2017 5:55 am

Re: tx200hc low power

Wed Aug 16, 2017 4:25 pm

Hi Guys I'd be interested to know what peoples mk3 HCs are cronographing at. Mine is almost new. I've only put about 700 pellets through it. I use AA Fields @16grains on the two separate occasions its registered 10.6 and 10.3 which I thought was a bit on the low side ...... especially as my mates new BSA Lightning was 11.0 !!! ... I wasn't happy ! :-()

Your thoughts etc would be appreciated
Cheers
Roj

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Timmytree
Posts: 927
Joined: Sun Feb 15, 2015 11:50 am

Re: tx200hc low power

Thu Aug 17, 2017 3:33 pm

Roj 252 wrote:Hi Guys I'd be interested to know what peoples mk3 HCs are cronographing at. Mine is almost new. I've only put about 700 pellets through it. I use AA Fields @16grains on the two separate occasions its registered 10.6 and 10.3 which I thought was a bit on the low side ...... especially as my mates new BSA Lightning was 11.0 !!! ... I wasn't happy ! :-()

Your thoughts etc would be appreciated
Cheers
Roj


The difference between 10.6 and 11.0 is only a few fps so I wouldn't worry. If it's accurate leave well alone. Try a lighter pellet such as AA Field Express.

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