OK, I've been fooling around with this guy and rifle scope from Gamo all summer.
I ordered a scope stop from Gamo and got it in the mail today. So I added it to the back scope base ring. This base also has a vertical pin type scope stop that fits into a hole that was drilled into the top of the barrel.
Once I got the scope mounted the other day (for the fourth or fifth time) and put the Blue Thread lock on all the new screws that I got from EBN I was able to let the thread lock material dry for 24 hours. Do today at 2 pm the 24 hour period of time had elapsed.
Today was calm and I set up my targets at 20 yards and 25 yards respectively. I was able to install the new scope stop behind the ring base that came with the rifle and the original scope. It took me a while to get it to grabs the 3/8" groves but I got it tightened in place using a 2.5 MM Hex head Allen wrench. Note: the scope stop didn't come with any tools to install it. I was lucky that I already had the right sized metric Allen wrench.
I took the gun out in the back yard and started by using a laser bore sighter and the scope was almost right on the money at 10 yards.
I fired a few rounds in to the target at 25 yards and noticed that differnet ammo shot differently. I 'd zero the scope in on the 20 yard target and then when I changed from a Lead Red Point type pellet to the Gamo Gold Raptor pellet the shots placements were different. But they were precise. The groups stayed together which tells me that the rifle scope is staying where I put it and not moving ... yet!
I was able to get some Gamo Platinum pellets to group well and on the target bulls eye.
Here is a shot of the last 4 rounds after I adjusted the scope windage and elevation knobs to bring the scope on target.
Opps: the target is upside down. I didn't edit this before posting. Sorry. The last shot was a little low as I let my next door neighbor kid shoot the last three shots. My first shot was right on target in the middle of the orange circle. He put two more on the bulls eye. The last shot was actually low because the other kid came over to see what was going on and one of the little brats was standing behind the shooter and bugging him.
By this time 6 other little kids showed up to see what we were doing so I figured it was time to put the gun away. LOL.
I'll not say anything else until I have time to make sure that the rifle scope stays in place and the gun continues to shoot straight. Over time the gun's excessive recoil has a tendency to make the scope bases rings move backwards. I'm hoping that the Permatex Threadlocker Blue Medium material will keep the screws from backing out and letting the scope rings move again.
I'm hoping that this will be a permanent fix and I won't have to go though this again for a long time. But I'm not going to hold my breath based on my past experience with this Gamo Rifle.
Note 2: I spend a few hours on the web today looking for review on this Gamo rifle and the scope. I found that other people had similar experiences with this rifle and scope. That's where I got the idea on using the extra Gamo scope stop.
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