I recently received my Sidewinder Compact in .30 and today was my first day out at the range with it. So far I would say my feelings are mixed...
Some cons... had some issues getting my March 1-10X shorty mounted - I use this on my Leshiy 2 and love it. I loved it so much I bought a 2nd for an AR build. I though maybe I would just grab the one off the AR and use it on the Sidewinder Compact. That did not work out though as the mount seemed to wobble - I am using the Scalarworks Leap/02 which is light but has a smaller contact surface - Tried both March 1-10x's I had and they both behaved the same.
I tried a larger March 5-45x56 on a larger Scalarworks Leap/07 and don’t seem to have the same issue – probably because so much more of the rail is engaged.
So I thought I would measure the size of the Sidewinder Compacts rail. Mine is .823” wide, where the spec says it should be .835” – my Leshiy is .835” wide
On the depth of the slots it is supposed to be .164” / .108” and my sidewinder is .105” the Leshiy is 0.12” and on my Saber tactical Picatinny extension ( that I use on my Leshiy ) they are .128” from the top to the bottom of the slot.
So for now I am using the larger March.
My rifle reg came at 130 bar - in the manual it warns... you don't need to adjust the reg, it comes pre tuned from the factory. Also in the manual it says = Never adjust the regulator below 140 bar or above 190 bar as damage to the system may occur... hmmm what to do.,.
Anyway the test report said it was around 790 FPS average - and I was getting avg 803 with my first zeroing targets at 50 yards - tried adjusting the power dial on the bottom +5 and -5 to see how that would affect things - not much change +5 gave me 811 fps avg
eventually decided to up the reg to at least 140 and that seemed to help with power overall and my set of shots at 100 yards was average 838 FPS - all of this was with JSB Diabolo Exact 44.75 pellets.
For shots I would get about 24 shots from a fill of 270 bar to 150 bar with the stock 300cc tank -
Attached is my 12 shot group at 100 - it was not windy today and I felt like this was a good string ( I did not feel like I did anything wrong ) - but not the most brag worthy target...
I am also including a 50 yard target with 3 groups... all of these was from a bench with an Atlas tripod and a bag in back.
I also have an FX Impact Mk3 .22 600mm barrel and can repeatable shoot 5 shots into 1 inch ( one of these squares / red area) at 50 yards - so you have an idea how I normally shoot.
I did try at least one mag on auto - which was fun and seemed to group well. I do like the weight / look / fit and finish of the gun and I am hoping to get it tuned better to tighten up the groups
I am using mine with an Impulse Air 1350 with 6 baffles and I thought it did a great job of quieting the Sidewinder down, although the mechanism still creates some noise. I would like to have someone else shoot while I stand away a bit to see what it really sounds like from 10-15' back