FX Wildcat .25 fan

My WC .25 MKI is 34" long; that's with two muzzle baffles.

Jim81, I feel ya re the Impact vs. the WC. I used to own an Impact .30. I thought the extra power would serve me well. What I didn't know when I bought the Impact was that good hunting rounds are not available for the .30 cal. like there are for the .25. It doesn't matter how much muzzle energy you have if the round merely passes through the animal and dumps its energy into the ground! I'm bagging a lot more game with my WC .25 shooting H&N Sport Baracuda Hunter Extremes than I did with my Impact .30 shooting JSB domed.

Plus, I love the simplicity of the WC. There are so many bells & whistles on the Impact, most of which I never used. The trigger on the WC is a dream to adjust. I damn near had a conniption trying to adjust the trigger on the Impact to where I wanted it. I finally just gave up. The securing screw on the swappable barrel system constantly needed re-tightening, and there were leaking issues with the swappable bottle design. I am so much more happy with my WC!

I am glad though that I experimented with several rifles and platforms before finally settling on the WC. I did learn a heck of a lot about airguns and ballistics.

I just ordered a DonnyFL SUMO for my WC .25 MKI. I have been shooting her with only two factory baffles. I thought it was quiet enough, but sometimes I notice game flinch when I fire, which ruins the shot. I thought it was just because I botched the shot, but now it makes sense. Since an AG is subsonic, an animal can hear the shot before the pellet gets to it. So, ultra-quiet is essential to derive the best performance from an AG while hunting.

I've never used an after-market moderator before, but I've heard nothing but good things about DonnyFL. And my contact with him here on the forum and through his website has been nothing but positive. His line of products is amazing. They are CNC machined from high-quality materials, and by all accounts, the quality of his workmanship is stellar. His moderators are also aesthetically pleasing. But, what probably stands out the most in customers' minds is the level of customer service. It's not uncommon for Donny to respond to inquiries in a few minutes, even in the middle of the night! He obviously has a tremendous work ethic and really cares about keeping customers happy.

I am really looking forward to screwing my new DonnyFL moderator on my Wildcat! I'm hoping it makes a real difference in the number of bunnies in my freezer I'll let you know how she goes...

SMH:

I've been through many AGs of different makes, models, and calibers; and the WC .25 MKI with the synthetic stock is the best one I've found for small game. I absolutely love my little baby! And as soon as I receive my DonnyFL SUMO moderator for her that I ordered yesterday, I'll love her even more

Well, people swear by DonnyFLs! I just want to be a more effective hunter.

I completely agree, Groundhog. I consider my WC .25 MKI the perfect critter-gitter, as well! I'm expecting my DONNYFL SUMO tomorrow. Then she'll be the extra-critter-gitter! BTW, I like your camo wrap. I might have to get myself some of that

I got my SUMO today. (It's beautiful .) Unfortunately, I ordered the wrong adapter. I need a shroud extender to clear the cylinder, which I ordered; should be here in a couple days.



In the meantime, my honey's still shootin' purdy. This is a five shot group at 100 yards off a Primos Trigger Stick tripod, standing up (no flyers). There was even a little crosswind. (There's two pellets, one hole, in the middle .) Boy, that Chairgun's da sheet!

Different strokes for different folks. This vid by the Ace of Accuracy himself swerved me to the WC:

https://www.youtube.com/watch?v=RL670BDXtgM

My SUMO adapter (the right one this time!) just got here . I just want to be clear; Donny did not send me the wrong one; I ordered the wrong one. He was great about the return. Again, as per usual, the delivery time was only a few days, all the way from Florida to San Diego! The fit and finish is fantastic, of course. Everything attached perfectly and fires true. (And boy, does she look sexy!) I just squeezed off a few (no pellets) inside with both the factory mod and the SUMO to gauge the noise difference. OMG! There is at least a 60% to 70% reduction in noise. (And it's pretty quiet with the factory mod.) With the factory mod, there is a bit of a bark. With the SUMO, it's merely a pfffft! (Sorta like what I imagine a mouse fart would sound like .) I can't get a valid reading with my dB meter. It's reading about the same with and without the SUMO (48dB), but I can tell with my ear that there is a substantial reduction in noise. I never really have been able to get a good reading of my airguns with my dB meter. My understanding is that specialized equipment is needed to get a reliable dB reading; that the process is complex.

And another bonus; my WC still fits comfortably in my backpack. The SUMO does add seven ounces and 5.5", but it's all good . Just a general question: Is the noise greater if a pellet is shot? (at the muzzle)

Well, Wildcat fans, I just ran a full bottle shot string after installing my DonnyFL SUMO moderator! Interesting results. I shot from 230 bar down to 147 bar before she went off regulator. The average muzzle fps remained virtually the same from my last shot string without the SUMO (878.0 fps from 879.2 fps), which will not materially affect the ballistics. I am still going to generate another Chairgun range card and field test it.

I bought my WC .25 MKI from AOA new in September 2017. I ran a shot string right out of the box. I got an average muzzle fps of 889.3 fps (spread of 8.7 fps); SD of 1.81, and avg muzzle energy of 49.37 ft-lbf with a regulated shot count of 41. I was thrilled! Best numbers I ever got, including PBs. I shot a couple tins through her, then ran another shot string. The numbers I got weren't as good, but that's to be expected due to the hammer spring "seasoning." I got an avg muzzle fps of 879.2 fps (spread of 13.1 fps); an SD of 2.92, and avg muzzle energy of 48.26 ft-lbf with a regulated shot count of 42. Still very good. (My Chairgun numbers using this data were confirmed valid via field zeroing and ranging.)

Then I noticed a disturbing trend. I ran a few more tins, and then ran my current shot string with the SUMO. I expected a little degradation in the numbers, because a couple tins really wasn't enough to fully break-in the hammer spring. But, although the averages were consistent with my immediately previous string, the variances skyrocketed! I got a avg muzzle fps of 878.0 fps, as previously mentioned (spread of a whopping 31.8 fps!); SD of 6.96 (ouch!); a good avg muzzle energy of 48.13 ft-lbf with a substantially higher regulated shot count of 47. I noticed that there was a series of inordinate relatively low muzzle fps at the beginning of the shot string, which was not present in my other shot strings. I really don't know what to make of these findings.

Attached please find Excel worksheets of all three shot strings. I certainly welcome any analysis of the data

View attachment 1533420548_6169022405b6624046f8535.51843097_Shot string_FX WC .25_Hunter Extreme_16SEP17.xlsx

View attachment 1533420570_2007809935b66241a11ae53.36377330_Shot string_FX WC .25_Hunter Extreme_19OCT17.xlsx

View attachment 1533420968_14864891735b6625a80c3173.81634539_Shot string_FX WC .25_Hunter Extreme_3AUG18.xlsx