Wildcat mk2 tune

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M

mschlee

Member
Jan 21, 2018
19
1
NY
Shot a few tins though it. Probably around 800 rounds or so. String looks good fps wise, but getting some flyers and poi shifts. Funny thing is that it seems to shoot really well around 885 fps which is where I saw the string that was reviewed on aeac YouTube channel (for comparison, see my sting below) . Note also that I only get around 45 shots VS others I've seen that seem to get closer to 60.

Thinking mine might be shooting a little hot but don't want to mess with it. Thinking maybe an experienced tuner can squeeze some more accuracy out of it.

In NY so thinking to send off to Ernest Rowe. Is he still doing tunes?

Any thoughts? 

Thanks all. 
Created: 04-08-2018 11:18:21 AM
Description: wildcat 225 to 110 bar jsb Diablo
Bullet Weight (gr): 25.390
Shots
# FPS FT-LBS PF
56 833 39.13 21.15
55 835 39.31 21.20
54 839 39.69 21.30
53 847 40.45 21.51
52 854 41.12 21.68
51 859 41.61 21.81
50 862 41.90 21.89
49 869 42.58 22.06
48 875 43.17 22.22
47 878 43.47 22.29
46 884 44.06 22.44
45 885 44.16 22.47
44 890 44.66 22.60
43 891 44.76 22.62
42 893 44.97 22.67
41 899 45.57 22.83
40 901 45.77 22.88
39 909 46.59 23.08
38 908 46.49 23.05
37 905 46.18 22.98
36 909 46.59 23.08
35 908 46.49 23.05
34 906 46.28 23.00
33 906 46.28 23.00
32 913 47.00 23.18
31 910 46.69 23.10
30 911 46.80 23.13
29 906 46.28 23.00
28 909 46.59 23.08
27 909 46.59 23.08
26 905 46.18 22.98
25 907 46.39 23.03
24 910 46.69 23.10
23 908 46.49 23.05
22 904 46.08 22.95
21 906 46.28 23.00
20 900 45.67 22.85
19 902 45.88 22.90
18 904 46.08 22.95
17 902 45.88 22.90
16 905 46.18 22.98
15 906 46.28 23.00
14 907 46.39 23.03
13 909 46.59 23.08
12 910 46.69 23.10
11 908 46.49 23.05
10 904 46.08 22.95
9 894 45.07 22.70
8 906 46.28 23.00
7 902 45.88 22.90
6 905 46.18 22.98
5 902 45.88 22.90
4 904 46.08 22.95
3 904 46.08 22.95
2 901 45.77 22.88
1 888 44.46 22.55
Average: 894.75
StdDev: 20.74
Min: 833
Max: 913
Spread: 80
True MV: 894.75
Shots/sec: 0.09
Group Size (IN): 0.00
 
Thanks guys.

Dirtbikerick, Good to know you also get about 48 shots. That is helpful. How consistent are your groups? Do you experience any poi shifts or opening up /flyers? I'd like to consistently shoot groups around 5/8ths at 45 yards if possible. It will hold 1/2 inch or less for a few shots, then move over about an inch and shoot tight again. Seems strange.

Ncrary, did you contact him through his email posted on his website? Or does he have something different now. 

Thanks again. 
 
Upvote 0
"mschlee"agree on the fps running a little high - and it did seem to be really tight group when the pressure was around 890-880. 
i wrote to ernest but have not heard back yet. i thought about hs adjustment but i didnt want to mess anything up. i'll take another look 
Click to expand...
The adjustment takes 5 minutes and that's finding the hex to remove the stock, removing the stock and then turning the HS adjuster out a 1/4 turn.
 
Upvote 0
Mschlee, have you checked some basics?, cleaned the barrel, checked stock screws, checked the end cap section for pellet clipping, scope and mount tightness, do you have another scope to try?, just some suggestions. Also watch the hammerspring adjuster, the hex is beyond soft, you will need to warm it up with a heat gun or micro torch to soften the locktight.
 
Upvote 0
yes, checked the basics, thanks for asking.

i'm a little stressed about adjusting the hs because i read some horror stories about stripping it and then having to drill out etc. would hate to bust up a $1,500 gun.

cant seem to get ahold of ernest though. i left him an email and pm'd him here. you guys know any other good tuners?

thanks again for all the help.
 
Upvote 0
"mschlee"yes, checked the basics, thanks for asking.
i'm a little stressed about adjusting the hs because i read some horror stories about stripping it and then having to drill out etc. would hate to bust up a $1,500 gun.
cant seem to get ahold of ernest though. i left him an email and pm'd him here. you guys know any other good tuners?
thanks again for all the help.
Click to expand...
I have no clue how someone would strip that out unless they are not inserting the hex all the way in, or using junk tools. I think that is a 4mm hex on there. Mine was VERY easy to adjust.
 
Upvote 0
Just get the action out of the stock, get a heat gun and aim it at the adjuster, give it 10-15 sec bursts to let the heat start transferring into the rear of the block and try turning adjuster, make a telltail mark with a sharpie so you know where it was in the beginning. Mine broke loose right about the point I could not touch it with my pinkies, back out a half turn and do some chrony shots. I have 2 fx guns that need wake up shots before the reg comes up to par.
 
Upvote 0
"dirtbikerick"Just get the action out of the stock, get a heat gun and aim it at the adjuster, give it 10-15 sec bursts to let the heat start transferring into the rear of the block and try turning adjuster, make a telltail mark with a sharpie so you know where it was in the beginning. Mine broke loose right about the point I could not touch it with my pinkies, back out a half turn and do some chrony shots. I have 2 fx guns that need wake up shots before the reg comes up to par.
Click to expand...
If you'll use a soldering iron, you don't heat any surrounding areas, just the screw itself. Hold it to the screw head long enough to conduct enough heat from the head into the threaded portion of the fastener. It's an easy way to add only the amount of heat needed to soften any thread locker without heating a large area of adjacent components.
 
Upvote 0
"Dagabose"I'm getting an increase of fps off the initial fill of 230 bar from the gauge on the rifle. The first 20 shots shot from the first shot being 792 fps and the 20th 885 fps, which is where it stable for about 60 shots. Could the initial fps creep up be due to over filling?
Click to expand...
Not from over filling, but from the regulator "Creeping". FX regulators seem to be known to do this.
 
Upvote 0
"BigTinBoat"
"Dagabose"I'm getting an increase of fps off the initial fill of 230 bar from the gauge on the rifle. The first 20 shots shot from the first shot being 792 fps and the 20th 885 fps, which is where it stable for about 60 shots. Could the initial fps creep up be due to over filling?
Click to expand...
Not from over filling, but from the regulator "Creeping". FX regulators seem to be known to do this.
Click to expand...
Ah, so to counter this would it be good to find the pressure at which it is starts around 880s , which seems to be where it stabilizes for about 60 shots, and just always start 
at that fill point? Or will I see this no matter what fill point I start at?
 
Upvote 0
"Dagabose"
"BigTinBoat"
"Dagabose"I'm getting an increase of fps off the initial fill of 230 bar from the gauge on the rifle. The first 20 shots shot from the first shot being 792 fps and the 20th 885 fps, which is where it stable for about 60 shots. Could the initial fps creep up be due to over filling?
Click to expand...
Not from over filling, but from the regulator "Creeping". FX regulators seem to be known to do this.
Click to expand...
Ah, so to counter this would it be good to find the pressure at which it is starts around 880s , which seems to be where it stabilizes for about 60 shots, and just always start 
at that fill point? Or will I see this no matter what fill point I start at?
Click to expand...
Doesn't matter what you fill to. If you fill and shoot right away all the shots will be the same. If the gun is allowed to sit for a period of time the seal basically starts leaking a little allowing more air into the reg.
The way guys fix it is to "Waste" the first shot or 2 by dry firing, or install a Huma.
 
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