Bobcat MK2 Regulator Adjustment

[Perfecto57]

Hi,

I noticed from the factory my .25 Bobcat MK2 regulator pressure is set at 140 bar.
Accuracy is OK. At 60-80 yards the groups open up to almost 1.5" and at 100 yards I'm looking at 2" groups. Shooting JSB Kings. If weather holds up I'll get chrony results tomorrow.
The chrony results from AOA on my gun were at 916FPS average. No idea what pellet they used.

Im asking about the regulator adjustment because I noticed on Teds .25 Bobcat, the regulator pressure looked to be around 200 BAR and his gun is stupid accurate.

Any input is appreciated. 
Thanks,
-Jeff

 

[pulps]

I think Ted's is not the MK2 so what you're looking at is the air pressure in the cylinder. My MK2's regulator is set at 140 bar as well. I haven't been able to shoot it further than 24 yards so i'm hoping the groups don't open up as much at 100 yards as what you're seeing.

 

[Perfecto57]

Ahhh, this is true. Didn't think about that. I forgot the new stocks are on the old models as well.
Got some crony results and figured out my accuracy issue.

Im averaging 908 FPS using JSB Kings. That's right where I want it.

The accuracy issue was due to canting. I corrected that and I'm shooting the heads off of small flowers at 35 yards. I'm hitting the regular sized Advil bottles at 100 yards. It's all about practice now. Haha
I have the gun zeroed at 30 yards. The second zero is at 40 yards. Can't wait to get in the woods with it.

Thanks for the reply
-Jeff

 

[Bob]

Hay got my Bobcat MK2 the other week to, mine also needs to be turned up just a little from the 136 bar that it came from the factory on. The average FPS on the chrony from AOA was 892. What is a good FPS for this gun and how do you go about adjusting it the regulator ?
Any suggestions
Bob

 

[pulps]

892 isn't actually too bad. My MK2 is current at 924fps but my old Bobcat MK1 was at 898. The old Bobcat seemed to be a little more accurate but I may just need more time for the new rifle/regulator to break in.

 

[Perfecto57]

It may just take a few thousand pellets to break in the rifle 100% and let all the seals settle into the gun. I'm between 1 and 1.5" groups at 70 yards.
More shootin time and getting to know the gun better is what I'm betting on to improve accuracy. I've only shot about 400 pellets out of mine so far.
Out to 50 yards this gun is deadly accurate. I was shooting the tops off of clover at 35 yards today and shooting the stems in half of tall weeds. Not bad. I want to hit shotgun shells at 100 yards with this gun sooner or later. Haha. Time for more practice.

 

[ljgnemo]

I have not measured the muzzle velocity of my gun yet. But it looks like the regulator on my Bobcat MKII .30 cal is between 160 and 170 bar.

Not sure what the designed regulated pressure is at, hope FX could give an official reference.

 

[Cayin]

You need to find the "magic" batch of pellets for your rifle, and buy it ALL!
I have a single box of "magic" pellets for my .177 AA S510 Carbine, why didnt i buy more..

 

[azccj]

My Bobcat Mk II in .22 has it's regulator set to 140 bar according to the gauge, but I need to find out what FPS it's shooting at. I have a nice chronograph just haven't had time to set everything up as I'm working 105 hours of OT this month. Here is a video that shows you how to adjust the regulator. The guy in the video is Ernest Rowe and he's done a few videos showing how to work on the Crickets. Seems like a real nice guy, kinda a very mechanically inclined Ted.