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Gamo terminology…?
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RangerPete View Drop Down
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    Posted: 16 Jun 2023 at 8:58pm
Hi Folks,

I’m trying to understand what all the different Gamo terms represent…
For example, I know that:

IGT - means Inert Gas Technology, which means gas ram not springer.
Whisper - means it has a silencer on the end of the barrel.
Swarm - means it has a 10 shot magazine.

But there are other words that I don’t know what the stand for, for example:
Shadow.
Delta
Fox
Mach 1
Gmagnum
Big cat

If you know what these mean, or any of the other Gamo terminology, please let me know.
Thanks.
Pete.
Walk quietly, but carry a big stick.
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mercs View Drop Down
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Mach 1 has the oversized piston 33mm instead of 25mm
Pictured is a .177 black fusion Mach 1    @ 20ft/lbs muzzle energy

 

Shadow is a model series made up of lightweight midpower midsize rifles
Pictured is a .25 calibre shadow     @15 ft/lbs muzzle energy



G Magnum are full powered versions
Pictured is a G Magnum 10 shot    @ 30 ft/lbs muzzle energy




Edited by mercs - 16 Jun 2023 at 10:21pm
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RangerPete View Drop Down
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Thanks Mercs,
So the shadow = light weight.
G magnum = full power
And Mach 1 is an oversized piston, (physically a bigger size gun?) Still quite powerful but not at G mag strength.
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mercs View Drop Down
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CAT = Custom Action Trigger
SAT = Smooth Action Trigger

G Magnum are a work out.
GamoMagnum Replay .22
Pellet BrandH&N
Pellet typeFTT
Average fps950
Grains14.66
Grammes0.95
foot pounds29.39
Joules39.84

Black Knight is my most successful hunter with CAT2 trigger probably at the edge.
GamoBlack Knight Mach 1 .22
Pellet BrandH&N
Pellet typefield target
Shot 1810
Shot 2821
average815.5
Grains14.66
grams0.95
foot pounds21.65
Joules29.36

Shadow series can be very accurate as the SAT trigger is very usable at this power
GamoShadow IGT .25
Pellet BrandJSB Exact
Pellet typeDiabolo
Average fps537
Grains25.4
Grammes1.6
foot pounds16.27
Joules22.06
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RangerPete View Drop Down
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Marc’s,
Your G magnum is pushing a 14.6gr pellet at 950fps…!
That’s really screaming for a pellet. Very likely getting unstable down range which could efffect accuracy?
I’d try a heavier pellet, see if the extra weight can slow it down to around 850fps.
Maybe even try a light 20ish grain slug in that bad boy?
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mercs View Drop Down
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Yes, your observations are "on target". FTT was one of my early pellet trials. 

H&N Baracuda Hunter Extreme 1.21 grammes 19.09 grains is everyday pellet of choice. Knocks the fps edge off but also very reliable in the 10 shot magazine.

Currently have the autoloader removed and enjoy the rifle in its less complicated form and it would be a lot easier to experiment with pellets. H&N Baracuda Match 1.37 grammes 21.14 grains 5.51mm is heavier but with full dome head may gain some accuracy.

GamoMagnum replay .22
Pellet BrandH&N
Pellet typeBHE
Average fps816
Grains19.09
Grammes1.21
foot pounds28.23
Joules38.28
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RangerPete View Drop Down
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nunga View Drop Down
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SAT = Smooth Action Trigger (should be S%it Action Trigger)

They are rubbish!
2nd place HP springer - WFTF World Championships 2014
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mercs View Drop Down
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Have to agree, I have two SATs one reworked by an engineer to gain some feel which is sadly missing when new. Sort of important to be able to tell when your rifle will fire.

The CAT trigger is an improvement when incorporated on the mid power models but that was some years ago and they do not appear to have advanced, I must look at latest reviews. 

I recall Gamo bought out BSA and came out with Lightning and Spitfire models but did not manage to take the airgun world by storm, if members have a BSA version how is the trigger and what about a post.

When a Gamo was sub $500 was it acceptable to have some components of a lesser standard. Prices have moved with many Gamo rifles priced closer to $1000 over the last 12 months.
Less power and build on technology gains when next around the design table is my suggestion.

I have many favoured Gamo's and after much practice the accuracy is always limited by the trigger or perhaps that is true across many brands.

What cost does a good trigger add, when looking at other brands I will suggest $400 so hard to stay competitive.

Keep the posts coming
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RangerPete View Drop Down
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Posts: 884 		Post Options Post Options   Thanks (0) Thanks(0)   Quote RangerPete Quote  Post ReplyReply Direct Link To This Post Posted: 19 Jun 2023 at 11:09pm
I’ve just won a guncity trade me auction for a gamo delta fox gt whisper.
Not sure what all that means, except the whisper part (means it has a silencer).
In some adverts and marketing it is called a youth rifle, well I hope so because i intend to give it to my son.
It sells in store for $270, I won the auction with $115, so I guess the price was right 😉
As soon as I can I’ll give it an accuracy test and some pics.
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