Scope issues

[Airgunsniper8698]

I have a Gamo Whisper Fusion Mach 1 Pellet Rifle 4.5mm (.177 Caliber) that I recently bought. It's a break barrel capable of 1400fps with the specialty pellets. It has serious recoil and it came with a scope and recoil absorbing rail as well. The rail was already mounted onto the rifle and I mounted the scope per the instructions. Every thing was snug, so I started to zero the scope in. I was shooting good groups at 50' and was moving back to 50yards to get some distance in. When I noticed my shots wandering considerably. The recoil absorbing rail isn't enough and the scope is actually stressing and deforming the metal rail. The scope was actually moving back with each shot. So I removed it to prevent further issues or potential eye injuries. I got a Rifle scope designed to handle the recoil and shock of a .22 cartridge rifle and mounted that and even that scope is sliding back with the amount of recoil coming back. I can use the iron sights but not at distance. I'd appreciate any advice or suggestions.

[PIPERMAN]

The mount that came with the rifle
has a small pin on the back down side,you need to
put the small allen key that came with and give a few turns,
then put the pin in one of the holes the rail has
and tight everything up.

[Airgunsniper8698]

I did, that little pin is what was deforming the metal rail that is intended to handle the recoil. I turned it in to make sure that pin was seated fully into its hole on the rail.

[PIPERMAN]

In this photo you can see the "trick" i did to the mount
a big stop at the end



but i dont need it any more,
when i use scope i dont even use this mount,
after the tuning the gun has almost no recoil
and with some "love" to the fixed moderator
the gun has almost no sound any more

[Roadworthy]

You did a good job describing your rifle.  What brand and model recoil absorbing mount are you using?  Piperman has some good suggestions but I'd go a step further.  Pull the scope out of the mount.  Remove the plate on the side of the mount.  See which side fits the dovetail groove in the rifle better.  That is the side to keep down when you replace the plate on the mount.  Install the mount loosely on the rifle.  It should slide freely in the grooves without falling off.  Now begin screwing the stop screw down.  With the sliding it should be easy to center it in your stop hole.  The exception to this would be the Diana Bullseye ZR mount.  It needs no stop screws.  Screw the stop screw down a bit until it barely touches down.  Pull your mount to the rear against the screw and torque it down.  Thirty inch pounds is usually about right.  Now put the scope into the mount and torque the straps to about fifteen inch pounds.

[Airgunsniper8698]

Roadworthy, I am not sure about the specifics of the mount. It all came with the rifle, so I am assuming that it is all Gamo. The scope was a gamo scope so I figured that there mount and rail are Gamo as well. I am going to try to add a picture of the rail and the scope mount for reference. You can see the issue on the rail.

[PIPERMAN]

Yep,
the gun has the isuess
not the scope or the rail...
Have a look for something like this

https://www.pyramydair.com/product/bullseye-zr-1-pc-mount-1-rings-weaver-0-04-droop-compensation-recoil?a=5496

but even better try to find the reason the gun has all that recoil

[Airgunsniper8698]

Oh, so this whole problem could be do to an issue with the rifle itself? Now that's kinda freaky, I've probably put 100-200 shots down range with this thing and it might have issues.

[Airgunsniper8698]

Piperman, I'll have to take it to a gunsmith to get the the root of the recoil itself.

I had wondered about that style of scope mount to handle the recoil, assuming that there are no issues and this is the normal recoil I will consider that style mount.

[PIPERMAN]

100-200 shots are enough to destroy the piston seal
if the gun is dieseling.
It's rather easy to open it,clean it from the factory lubricants
put an aftemarket seal with tiny tiny molly grease on it
same to the piston only to the top front and back
and you are ready to go!

[Airgunsniper8698]

I'll try that but I haven't noticed any difference in the feeling of how it fires or the sound from the first shot I took till now. I'll get the manual out and try to do what you said though.