Things I liked:it does what it should, makes loading much easier Things I would have changed:for being such a simple piece of plastic i find it is overpriced.
a max. fill-line would be good, otherwise unless you count it's hard to tell when capacity is reached
Things I liked:the look is good, the scope is nicer than the one on the TR77 and it has red and green LED illumination Things I would have changed:it is way not a whisper quiet airgun as I anticipated, the way the spring discharges right next to your ear and shakes the whole gun is bad. It may be quieter than others on the market, but -5 or 10 dB is really not that much
it has way too much recoil- inaccurate. You may be well advised to buy a cheap chinese made "whisper" gun What others should know:I would unfortunately say that I am disappointed in this airgun overall. Besides the fact of the "unquiet" factor. Granted, the loudest thing about it is NOT the pellet but the powerplant, maybe with a Nitro or precharged pneumatic it is better?!
Also it is pretty inaccurate. I've fired about 500rds with it at 10-25 yrds, it is absolutely hit and miss at 25yrds even if it's propped up on a sandbag and as steady as possible, the grouping is really not good. With the TR77 which is much cheaper (and I got rid of it before I got this one) it was much easier to shoot clusters in about a 2.5" radius at about 20 yrds (which more skilled marksmen probably smile about).
The variations in discharge of the spring driven power plant and the shudder and recoil make this gun literally a hit-and-miss gamble. it is well built, feels good, but a disappointment if you want something you can actually rely on delivering dependable consistent performance. I don't like writing a negative review and I hope that in other peoples hands the X20S does exactly what they want.