Author Topic: GAMO Mgnum IGT Match 1 33mm piston  (Read 237 times)

defected

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GAMO Mgnum IGT Match 1 33mm piston
« on: September 30, 2018, 01:24:35 AM »
Hello.
Im new here. Hope you will help me .
I was searching on thi forum the answer but no results.

Gamo 1250 Magnum IGT Match 1.
New system igt 33mm biger piston.

I bought with 24 joules but in manual shows 35-45 joules.
So they make som how limited power.
In norway power is no problem, only caliber. Wish to get more power from that rifle.
What can be done to achieve my wish ;)

Thank you !!


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Alan

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Re: GAMO Mgnum IGT Match 1 33mm piston
« Reply #1 on: September 30, 2018, 04:52:21 AM »
I looked around as well, but I didn't see any mods available for this airgun. In some cases, lessor models can be upgraded with a nitro piston out of a more powerful model, but the 1250 is already at the top. If you need more than 45 joules, you will need to move up to a PCP.
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Alan

I have an Omega compressor. If you're a fellow Guild member, and you pass through Roswell, NM, I'll fill your portable tank as a courtesy.

defected

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Re: GAMO Mgnum IGT Match 1 33mm piston
« Reply #2 on: September 30, 2018, 05:06:14 AM »
What i know from gamo . You need to drill 3.8mm hole through . You can see when your rifle is break for pellets load. There is hole.
But need to make sure is this is the right way to go.
They make size of the hole for joules according to the country's.
Norway joules no limits:)
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Alan

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Re: GAMO Mgnum IGT Match 1 33mm piston
« Reply #3 on: September 30, 2018, 06:59:19 AM »
Are you speaking of the hole from the Nitro-piston to the chamber?
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Alan

I have an Omega compressor. If you're a fellow Guild member, and you pass through Roswell, NM, I'll fill your portable tank as a courtesy.

defected

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Re: GAMO Mgnum IGT Match 1 33mm piston
« Reply #4 on: September 30, 2018, 07:25:47 AM »
Yes that one. I even got pdf how to do it.
But need to find out if this is correct way to do it.

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« Last Edit: September 30, 2018, 07:31:58 AM by defected »
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Alan

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Re: GAMO Mgnum IGT Match 1 33mm piston
« Reply #5 on: September 30, 2018, 12:04:25 PM »
From what I have read, there is a fine line to draw about making the hole slightly larger, and the weight of the piston slightly less to increase power. I'd also bet it is a bit tricky, which is one of the reasons there isn't more info on the mod.

By the way, 45 joules is about 33 foot pounds, which I suspect is close to the limit for nitro-piston airguns. I further suspect that double recoil starts to become an accuracy issue at higher levels.
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Alan

I have an Omega compressor. If you're a fellow Guild member, and you pass through Roswell, NM, I'll fill your portable tank as a courtesy.

defected

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Re: GAMO Mgnum IGT Match 1 33mm piston
« Reply #6 on: September 30, 2018, 10:52:58 PM »
Doing that you will get 30 joules on 4.5mm and 40 joules on 5.5mm.
For 45 joules you ned to use very light pellets with will effect shoting quality.

Give me your email address . Will send pdf how to do it and then we can talk more.
Its the way hiw they regulate joules.
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