Things I liked:The power is significantly more! I do not have a chrony yet, but the phone-book test speaks: without gasram the JWS Exact 4.52 penetrated untill page 331 and with the gasram it came until page 411. :-) It also shoots smoother. Things I would have changed:For people who have the correct tools and are clever enough to dismantle an airgun (like me), it would be nice to have a manual how to install the gasram!
I just ordered the gasram (because I live in The Netherlands) and I would have appreciated some kind of a installation-manual... What others should know:If you are not sure about dismantling your own gun, just ship yours to PA! But, it is worth the effort!
Cocking the gun definately goes heavier!
Things I liked:Nice pellet, no lead dust, no black fingers :-) Things I would have changed:like all other pellet tins: make a screw lid! What others should know:Groupings are not good for my Gamo Shadow CSI with gas ram. c-t-c about 1/2" on 12 yards...
Things I liked:No lead dust pollution. Very good finish! Perfect for my Gamo CSI with gas ram. c-t-c about 1/8" on 12 yard. Things I would have changed:Make a screw-lid... What others should know:JSB is one of the best pellet manufacturer. Not the cheapest, but certainly the finest.
Things I liked:1) Best finish of all pellets I have seen 2) very consistent shape 3) No lead dust pollution at all. Gives hole in hole groups with my Gamo CSI Shadow with gas ram! Things I would have changed:Screw-on lid on pellet tin. What others should know:Maybe a little more expensive... but you get high quality!
Things I liked:The enormous accuracy! Things I would have changed:When I opened the can, I already saw a few damaged pelletskirts. Also, a lot of lead-dust. I had really black fingers after 100 shots. What others should know:I only tried them in my Shinsung Career Infinity and they work really fine. A good choice although they look a little poor...