OK so here is my first review of a custom Air gun part so please bear with me as I stumble through this. First off let me say that I by no means a pro air gunner. I just got started in May of 21, and have tuned 2 rifles. An avenger, and a Crown MKII both in.22. Second dealing with Mont through this process has been a treat. Unknown to me I had a regulator gauge that was 9.5 bar off, on the low side, and could not figure out why I was having such poor performance. I must have messaged Mont on here 50 times trying to figure out my issues. He never hesitated to give me advice. I ordered a Huma digital gauge, and 2 new gauges. Once I discovered my issues, and followed Monts advice, tuning my crown was a snap. The only mod to my gun at this point is a Huma dual transfer port. Now with the pre-emptive out of the way below is my review.
I am shooting NSA 23 gr, .217 slugs. My target speed was 950-960. I set the reg at 140 bar, the power wheel to 3, the grub screw I followed Steves advice from AEAC and adjusted it to factory. Then following Monts advice I sot a 6 shot string on setting 3. Moving the wheel up 1 click, I then shot 4 shots over the chrono watching my speed. And continued this till I saw my speed drop. This happened on setting 12, so I gave the gun 5 more bar of air, backed the wheel down a few steps and repeated the process. as I started coming back up the wheel I was getting really close to my target speed. I got to 955 at setting 17, by 19 I was pushing 960-965, the gun was still shooting up and down the range as the hammer spring had not been adjusted. When adjusting the grub screw I moved it ever so slightly, barely noticeable movement. I started shooting 9 shot groups at this point. Just trying to get that SD/ES as perfect as I could. Here is 1 of the groups I sent to Mont trying to figure out why my 4, and 9 shots were 17 fps slower. He explained to me that the FX pocket radars sometimes can read erratic, and to continue tuning.
So with all of that said you folks are probably wondering what I thought of Monts wheel. Fitment was spot on. I did use a nylon washer under the screw to give it a smoother rotation when tight. Other than that it was spot on. I do have the "Gen 1" wheel that doesn't have the raised portion at the top to grasp when making changes. This does make it a bit tougher to make the adjustments with the GRS Stock model Crown, but Mont has already addressed this. I don't know how to describe the ease at which I was able to tune my gun after finding the faulty gauge issue using this wheel. The smooth, flowing curve this wheel gives you over the "choppy" factory wheel is amazing. As you go up, or down on the wheel and watch a graph with your chrono the linear motion of each shot is so smooth and clean. With the factory FX wheel I noticed the graph was not a smooth linear motion, but made large peaks and valleys between each wheel position. Due to the fantastic weather in Northern West Virginia I have not had the ability to go out and bench shoot my gun, and zero it. I know that just changing the power wheel will have no bearing on the accuracy of my gun, however having more positions on the wheel and the smooth linear motion it creates in the power curve, if I need to back down my speed so the slugs are happier it will be a breeze. I will add some photos to this post once I get home of the power wheel in place and the ramp on the power wheel to show any signs of wear, I am also going to put the factory knob back on, and retune my gun with it since I have proper reading gauges for an honest apples to apples comparison. I have no doubt in my mind that Monts wheel will still be the blue ribbon winner. Mont is working up a price point for these, so I do not know the cost, but let me tell you this is a worthy investment for your rifle. I honestly will say that it is a 100% improvement over factory. I hope my ramblings make sense to you fine folks here. Feel free to message me any questions/comments you might have. Also a special shout out to Mont for sending me this wheel to try out, and test for him. Cheers.
Here are the pics, internet was out at the cabin.