I picked up a Gamo Silver Shadow Supreme from Gander Mountain tonight that was a model from last year I was told. Black synthetic stock, silver barrel, no open sights w/scope stop. The gun did not have a box and was the only one on display. So, since I didn't really need a new airgun, I asked if I could have it for a discount and he obliged with 15% off since it was a floor model and did not have a box, paperwork, etc. Looks new and I asked if the employees or customers mess around with the 'floor models' and cock them and dry fire them. He replied an emphatic 'no, they do not, they have a trigger guard on them and can't fully cock them anyway since they sit in a locked gun rack'. Here is the deal, I get the gun home and pointed the gun at the ground after checking the breech and pulled the trigger. Pop! It was cocked all right and since it was a floor model and supposedly last years model, how much spring fatigue could have occurred? Nobody will ever know how long this thing was cocked. Not to mention they are not to be dry fired. I certainly can't chrony the numbers since I'm bidding on a new chronograph on Ebay right now to replace an old one. Should I return it? I can't tear it apart without a spring compressor and look can I?
Well, it appears that the last two digits in the serial number were 03. So it must be a 2003 then. I wish I had my new chronograph to check the speed. I did get to shoot a few 7.9 gr. at some targets and my backstop is a piece of 1.5" pine. I know you really should not estimate power using wood penetration but, since I don't have my new chrony yet, it is burying 7.9 gr. pointed pellets 1" into the backstop at 10yds. The wood has really thick rings and no knots. I shot my R7 into identical wood next to the Shadow groupings and it doesn't penetrate as much as the Shadow. My R7 chronied at an average of 645 with 7.9 gr. pellets the last time I checked it before my friend buried a pellet in the display of my old chronograph. Obviously the Shadow couldn't have lost too much power. I will probably keep it. The retail was $169.99 and Gander Mountain had it on clearance for $159.99. I additionally got another 15% off the $159.99 price after asking for a discount, since it was a floor model and the last one which did not have a box, papers, etc. So I eventually paid $146.51 before I walked out the door. Appears to group 1/4", sometimes 3/4" at 10yds. I obviously will try different pellets tomorrow and expect it to improve over time once it breaks in and once I am used to the gun as well. I may keep it after all. It has a black synthetic stock, silver barrel, no open sights with a scope stop, and a black muzzle break. Obviously the employee was way off when he said it was last years model if the last two digits denote the serial number as 03, which would be a 2003 model. It could not have been cocked for 4 years I doubt and shoot as hard as it does. I'm sure there must be some weakening as you say, but like I said I really do not have any idea how long this was cocked for. Could be months, could be a year sitting like that on the rack. I wish I could find the article I once saw online where someone left a springer cocked for months, then shot it, then cocked and left it for months again, then so on and....you get the idea. I think it was a BB Pelletier test/blog, could be someone else, cannot remember. Anyway, they documented the power lost from the many cycles of being cocked for so long.
I sighted in and was WAY low. I was expecting this anyway from some reviews I read about this model, plus break barrels in general can experience this regardless of manufacturer. It was shooting so low I quickly ran out of adjustment on my scope. I was zeroed in and the adjustment was just about at its maximum. So I used one cut down piece(one thickness) of 35mm film negative for a shim on the rear scope ring. Then it was 1 3/4" high before adjusting again but, it allowed me greater room for adjustment without having to worry about maxing out my elevation. The scope stop seems nice on this model. My first Gamo purchase to add to my collection and I am satisfied so far.
There was a .22 cal. that went through the front display of the chronograph at around 50 yards. My friend decided he HAD to try it out at different distances, against my recommendation, and a combination of either bad shooting and a 'flier' resulted in this mishap. I didn't look repairable to me, but I could be wrong. I suppose if you had spare parts and had the know how it could be attempted. It was a F1 chronograph. I will try to get it out of the garage if you're interested, it's sitting with some other stuff in a barrel that was destined for the dump.
In one of my latest mags they did a test on having a gun cocked for a day, a week, and a month and it only lost 6fps between a day and a month so it can be left cocked for some time and not damage it.
But I would not like to leave mine cocked anyway.
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