Things I liked:The stock looks great and is weather proof. Accuracy with the right pellet is superb. Fairly light weight IMO. Easy to cock the barrel, and is not very loud with medium to heavy weight pellets. Things I would have changed:The scope was the only complaint for me as in the higher settings it becomes difficult to see the lines. Easy fix get a different scope. What others should know:I have tried a frew different springers from Beeman ( chinese made model). to a Crosman G1 ( good rifle but accuracy is not on par with this Gamo.) and I also tried a Benjamin Super Streak for a day. The gamo out preforms them all. Although the Benjamin is a big powerful beast it was not near as smooth to fire and is really not a good rifle to carry because of its length ( nearly 50 inches) and weight. I know many of you have heard thios befor but it's oh so true. Power means nothing if you can't hit your mark. the Gamo viper is a great all around Pest / target rifle. I would highly recommend this rifle for this application. I have now added a higher end mil dot scope and have been blown away by the proformance. this gun will stay with me for a long time to come. Pest animals from small birds to rats rabbits possums and even raccon with a well placed head can be taken. I have found best accuracy and penetration using the Gamo Rockets. Aso Cosman field points and JSB predators provide great accuracy. Stay away from the PBA CRAPTORS and the other fast & furious ultra light pellets because you will not be abel to hit anything smaller than an elephant.
Things I liked:Accurate. These are the most accurate pellet the I have fired through my Gamo Viper. For me just as accurate as the JSB Predator (although it looks like gamo is just copying JSB). These have transformed my rifle into a deadly small game / varmit sniper. Things I would have changed:Put more in a can especially for the money they charge for these. What others should know:These pellets hit hard. Just tried them out at 10 to 40 yards and they hold tight. They also seem to hit very hard. I have only shot paper and a 12 Oz plastic bottle at 40 yards but they make a very solid deep sound when they hit. ( unlike the CP lites I was also shooting) I have not shot any pest yet with these yet since this is my first day with them, but I can only imagine that they will devistate small varmits. With these pellets along with a GRT III trigger and a new Center Point mill dot scope my Gamo Viper is a truly effective sniper ( up to 50 yards). I shot 3 rested 5 shot groups that could be covered with a quarter at 30 yards. Can't wait to try these out on my unwelcome guests..The Red Fire will be my new GO TO pellet after todays testing..
Things I liked:The stock looks great & the bull barrel adds to the looks of this air rifle. It is light and can be taken in the field without worry because of durable materials used on it. Power is spot on for any pest bird and most fur covered pest as long as you keep shots within range and hit the sweet spot. Things I would have changed:The Scope and the trigger. I upgraded both on mine and it took this rifle from OK to Great. I will also add the nitro piston to this from PA when I get a chance. What others should know:This is a good rifle but a few upgrades can make all the difference. First GRT III trigger, a very easy and cheap install. Second upgrade the scope to something that can handle the recoil. Third use lock tight. Then skip the PBA ammo and try some of the quality pellets Mine works very well with predator and redfire pellets on pests. Match pellets are great (RWS) inside 20 yds. Heavy round nose pellets are better for longer ranges ( JSB 10.2 grain & Gamo Rocket 9.6 grain). This rifle will take a few hundred rounds to settle in and get best accuracy. I clean the barrel every few hundred shots or so and the accuracy has been excellent. I can keep shots inside a quarter at 20 yards and can hit a 16 oz plastic bottle at 50 yards every time as lonng as wind is calm. I do recommend this rifle. The small upgrades make this an awesome choice.