Couldn`t resist

well i picked up a gamo viper rifle at the local sporting goods shop today,  had $20. off coupon plus   MA. is having no sales tax today and tomorrow so i had to buy something .    gun seems to be built very good no plastic on any of the business parts.    scope was missing some torx screws though.   i lossened up the three scope mount dovetail screws and the mount seemed to not slide on the dovetail?  is it pinned?      this gun is very quiet i dont know what all the fuse with noise on these guns is, i think most of the noise comes from the spring in the gun. not the blast of air.      the viper kicks like a mule though, i was not used to that,  you cant see the target getting hit because the gun jumps so much.      the trigger pull is very hard and i havent tried adjusting it yet.         does the GRT-III trigger that charliedatuna  makes   fit the viper?  and is it a good  improvement over stock?         overall iam very happy with gun, only shot 100 pellets through it today just to get the scope close.  the pba pellets hit 2 inches higher than all the other gamo pellets i was using at 25 yards and they were a little louder.   very good gun so far, time will tell

[Gene_SC]

Never have took off the riser on any of my Gamo's that come with them. Really no need to. That power plant in the Viper is very harsh at first until you get a thousand or so pellets through the chamber. Yes the CDT GRT-III is a vast improvement over the stock trigger that Gamo uses. Do youself a favor and invest in a GRT-III trigger and you will love it. Lite pull with crisp second stage. I have found that even if you do a basic lube and deburr tune on the Gamo's air rifles it makes a world of difference. If you send your Viper to CDT he can do a tune and install the trigger for you and you will have a fantastic shooter when you get it back. Will last you for many years to come without wearing out. Gene

iam ordering a grt-III trigger right now for my viper.     while i have the stock off to install trigger is there anything i can lube(spring/slide/sleeve) which will help reduce the big recoil kick? any one have info/pics?      thanks again for all your help, this forum is great.   bryan

[Gene_SC]

Do not pour any lubs into action where spring is. You can follow CDT's instructions on how to install the trigger and lube it. You can wipe some clear tar on the bear trap linkage and the roller on the cocking linkage. Also you can lube the pivet points of the barrel to action and put some clear tar on the plunger and pin on the lockup. Use these lubs sparingly.. In order to do a complete deburr and lube you need to us a spring compressor and remove the spring and piston from action. Like I said if you did a complete Turbo Tune on the Viper you would not know it was the same air rifle. Believe me cause I have 13 Gamo's which have been Turbo Tuned and they are smooth to cock with no spring noise or vibration now. And with the GRT-III trigger you have a $500.00 to $600.00 high end air rifle for less than $200.00....

Gene

what is clear tar? never heard of that lube.      just got in from putting some more lead thru gun and one thing i noticed is different pellets shoot totaly different.   i bought a 4 pack of gamo pellets, (hunter,match,and two others i dont remember the names). i sited it in with the match pellets and the other three wont even hit a paper plate at 20 yards.  oh well i will just use one kind of pellet from now on.   hope my new cdt trigger will be in this week

[shadow]

Keep trying different pellet's and brand's, there's one out there that will find the mark......everytime. Ed

[Gene_SC]

Ya Paul, it is the same power plant. I think Barry said it was all steel breech and barrel. If so it has the stepped bolt with steel bushing and should have the spring steel thrust washers.

Gene

Yup, what Gene said.Well with the exception of the reducer from the ID of the shroud to the OD of the barrel.