Fx Impact MK2 shotstring

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drbytes

drbytes

Member
Dec 24, 2016
44
2
none, Belgium
My Impact seems vary it's speed quite a bit. I measured this with the Fx Chrony and left some time between shots;.
Has anybody seen these sorts of numbers? The Impact is only 2 weeks old. I followed Ernest's tuning and shot through two tins of MKII Heavy 34gr.



Shot count: 30
Low: 861
Hi: 909
Avg: 881
STD Dev: 10.8
Spread: 48.0

06-05-2020 19:48:18 --> 888
06-05-2020 19:48:32 --> 884
06-05-2020 19:48:56 --> 886
06-05-2020 19:49:06 --> 879
06-05-2020 19:49:15 --> 909
06-05-2020 19:49:23 --> 886
06-05-2020 19:49:31 --> 884
06-05-2020 19:49:40 --> 884
06-05-2020 19:49:50 --> 898
06-05-2020 19:50:07 --> 893
--- WAIT ---
06-05-2020 20:12:36 --> 879
06-05-2020 20:13:19 --> 886
06-05-2020 20:13:51 --> 865
06-05-2020 20:14:31 --> 888
06-05-2020 20:15:01 --> 879
--- WAIT ---
06-05-2020 20:23:58 --> 868
06-05-2020 20:24:26 --> 877
06-05-2020 20:24:47 --> 879
06-05-2020 20:28:47 --> 881
06-05-2020 20:29:47 --> 879
06-05-2020 20:30:20 --> 886
06-05-2020 20:30:58 --> 861
06-05-2020 20:31:21 --> 863
--- WAIT ---
06-05-2020 20:36:08 --> 863
06-05-2020 20:39:23 --> 884
06-05-2020 20:41:14 --> 888
06-05-2020 20:41:40 --> 863
06-05-2020 20:44:18 --> 888
06-05-2020 20:47:12 --> 870
06-05-2020 20:47:54 --> 879


 
I may be wrong but could happen you tuned your Reg too fast with big steps at a time.

Happened to me the very first time (a month ago) then I re-do 2-3 more times (it was like tuning a whole week) and finally got it to zero, 5-6 shots strings between each adjustments.

Eats up pellets very fast, I had to rebuild the pellet trap backstop several times, also vacuuming the lead powder shred takes effort as well. I put about 3 hours running a compressor to fill the CF tanks.

1588857862_18569406765eb40c060427b4.50265873.jpg



 
Upvote 0
Did you adjust the black knob on the front of the block? I can’t remember what it’s called but it allows for you to tune your gun so the valve doesn’t open wide up if you tune it down a little until you notice your FPS drop then your shots should be more consistent. I think what is happening to you is your gun is still releasing air when the pellet has already left the barrel. Try checking for accuracy too if your accuracy is off I bet it just needs to be fine tuned a little more. 
 
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