Mac1 Discovery wow!

[CitySniper]

Just got her back from Tim, and I wish I would have just bought it from him. Some of you guys already know how good his work is, but this was my first time....and it wont be the last

He did the full tune, including the power adjuster/extended bolt probe, crown, in lead, and other things. Man this thing is shooting soooo sweet, He was testing with 18.1 JSB so that is the pellet I sighted in with.

only have my indoor 10 yd. range to test @ the moment but they are all one hole groups, so here is a chrony string. Haven't touched the power adjuster and its almost @ 27fpe with 18.1 JSB

   String 1   String 2   String 3
1   790.50   809.10   746.80
2   801.60   811.40   734.30
3   789.60   806.90   
4   792.90   802.20   
5   797.10   801.70   
6   816.80   795.60   
7   799.20   788.50   
8   812.50   780.80   
9   812.90   770.00   
10   812.00   758.50   

started @ 2100 psi. ending @1000


The bolt probe seals really nice, unlike stock. and looks to be brass

[The Knot]

Before i gave my mac1 disco to my friend i was dropping chipmunks at 40+ yards easy tim is as good as they come and stands behind all his work . He also tuned my hb22 pistol it real fun also you will enjoy that disco alot more now mine loved Crosman premires the best hard pellet would make a loud pop when it hit the monks

[Perry]

Yea Tim does good work. He did a steroid tune on my 392 and turned it into a sweet 26 FPE pumper. He also tuned my HB22 as well.

[CitySniper]

I have been playing with it today.., Love this little light tack driver. Seems to want a higher fill pressure now, Because the sweet spot is around 1900psi.  so I filled to 2300psi trying to get a nice "Bell Curve" here is the shot string.

2,300psi fill  18.1Grain JSB
   String 1   String 2   String 3
1   771.50   800.80   802.80
2   780.70   813.60   793.70
3   773.10   811.40   792.20
4   786.60   806.10   782.40
5   786.90   812.10   769.40
6   792.00   813.20   763.10
7   794.10   811.40   751.90
8   793.40   808.50   1,100psi.
9   800.00   806.90   
10   805.10   806.50   
                      
2,000psi.          1,500psi.


          1st 10 Shots           2nd 10 Shots         3rd 10 Shots
Min.             771.50                 800.80              751.90
Max.             805.10                  813.60             802.80
Average      788.34                 809.05              779.36
Median       789.45                809.95                     782.40
Extreme Spread   33.60        12.80                      50.90
SD                  10.90                 4.03                     18.47
Ave FT LBS      24.98                26.31                      24.42
Cum FT LBS    249.88       263.14                     171.01

can't wait to field test this thing

[run and gun]

Dido's on Tim.I've had my disco 22 cal for 3 years and it is one of my go to guns 4 sure.too many kills to count.he really lighten up the trigger so much that i had to back off the sear spring some to find the sweet spot.fortunately i live in close proximity to him.

[Joshua A.]

I'm a huge fan of his work...what does it cost to just buy one tuned from him?

Joshua a.

[CitySniper]

Here are the prices off his website for a New gun including the Tune.


Crosman Discovery .177 or.22  Includes Mac1 accuracy prep $275.00
   
Crosman Discovery w/pump    .177 or .22 Includes Mac1 accuracy
prep    $425.00


Oh yeah , he also changes to a way better breech Oring too.

Around $75 if you send him your Disco to be tuned, well worth it. I can tell he has taken the whole gun apart and cleaned it then put it back together better.