Kalibrgun Ocelot with DonnyFL Sumo

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Elbowgrease

Elbowgrease

Member
May 25, 2018
865
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Airzona, United States
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Well I did it. I just could not stand how loud the thing was. It was not backyard friendly at all. 
I was going to send the part out for reference so the needed part could be made but I was having a battle within myself over the fact that I do have a mini lathe and a drill press. Anyway a local machinist gave me a piece of aluminum stock to play with when I was out and about one day. So I made use of it and made a working prototype. Actually I could just call it good but I would like to make another. My original fear was making something for a nice airgun and not being a professional, but just a hobbyist and really messing something up.I just took my time with it. I used the DonnyFL Sumo that I have for my Vulcan. Thought about ordering the smaller DonnyFL for it but I was so impressed with how well the Sumo worked I just ordered a Ronan for the Vulcan.
 
I love the thing. Its very accurate and will stack pellets out to 25 yards when rested. Never tried any farther on a rest with it though. However I have shoot it out a good amount farther just playing around. Still accurate. I use a pistol scope on it as well. Thinking of upping the power just a bit on it here soon. One of the reasons I got it was simply because I wanted to add a pistol to my airguns. Most of them out there are fugly to say the least. I personally love the look of this thing and it is very comfortable to grip. Well as long as you are a right handed shooter. As far as I know they only make them in right hand. Fun airgun. 
 
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I was interested to read your post. You just don't see any threads on the Ocelot. It was one of the first PCP pistols I got and I'm on the fence about keeping it or selling it. The Ocelot is really nice but it's a handful to shoot.

It's so accurate and with a red dot you'll definitely shoot what you are hitting at. The barrel is impressive and looking down it appears to have a tight twist. It shoots light slugs very well - albeit a bit slow. But, I just can't look at it as a "Match" pistol. It's way too heavy to hold as a pistol with no front support. The trigger is really heavy too making it a challenge to hold the pistol steady and take a shot without the pistol moving. And to the point of your post it's also really loud. 

I was thinking of reaching out to Donny's custom guy to make an adapter, but I'd be interested in trying out yours if you'd machine an extra one to sell.

Do you know if it's easy to get to the reg to increase the power a bit?

Also, do you know if there's a way to lighten up the trigger? It must be 5 or more pounds pull to get it to fire. 

Sorry for all the questions, but it's nice to find someone to chat with about this pistol.
 
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I have my trigger set very light actually (not to the point where its unsafe). I will say that I did have an issue with trigger adjustment screws moving from even so much as a trip down a simple dirt road. I did put a heavy does of blue thread locker on each one. I can still move them when I feel I need to make adjustments. Other then that I had done nothing to the trigger beyond adjustment.The regulator is easy to get to. Just bleed the air out and the air tube screws right off with ease. I have messed with mine a bit and upped the power a very small amount. I wanted to keep the high shot count. I would not see this as a comp pistol at all. More like a short range hunter. You could push it out a bit with a pistol scope. I tried a small rifle scope and needing to hold it close sucked. I did find a pistol scope though. That makes it heavy for sure. 

I actually was out plinking this weekend and took the ocelot with a few others. Ended up shooting it more then my others. I had the red dot on it so for me and my buddy even one hand shooting was not bad. Though most of the time it was two handed using the second hand as a rest for the base of the grip. There was lot of junk around to shoot. Sad when you think about it. Lots of shotgun shells for one. And cans. 

If I was you I would look into Donny's guy for an adapter if you are fine with sending part of your pistol off in the mail. Im actually messing around with another build that still on the lathe. Keep in mind that a suppressor will add some weight. Not like a scope or anything. But still. So if the need to make it more backyard friendly is not an issue I would skip it all together. Another thing to keep in mind is depending on the suppressor di you may need to take it off with every air fill. I would love to make you one. But it could be some time before I get around to making another. I would send you the proto but there is a reason I am making another. It works and it works well but has its issues that I dont like.
 
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Thanks for the reply. I was messing with the trigger screws today and actually got a good feeling going with the trigger. I hope the screws don't move too much on me or else I'll have to hit the with some thread locker as well. 

I figured out that the small hex screw in front of the trigger and behind the tank is a bleed valve - which came in very handy for reg setting today. I wanted to see what I could get the gun to do as far as power. I was able to take it all the way up to 20fpe (JSB 14.35s @ 788 fps). The gun appeared to go off reg at ~150bar so I figure the reg is set somewhere in the 140-150 bar range. Hammer spring tightened quite a bit - but there's still a little more to go so I bet I could get another 2-3fpe out of it if I wanted to. I haven't tested how many shots I could get out of it yet cause my fill tank was getting low. Topping off the fill tank tonight and hope to get shot count numbers on a 250-150bar fill in the next day or two.

That's a complicated piece that threads into the muzzle of the Ocelot. There's no threads until you get 2" into the barrel. I'll reach out to Donny's custom guy but I have a feeling this will be an expensive one off part. 
 
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Just a heads up. He made me a nice offer with the price when I had asked him about pricing. He quoted me $65. Not sure if thats with or with out a thread protector or not. Im still considering sending off the part but like I was saying before Im not to keen on sending a part in the mail. I know it sounds odd but I would rather lose a full gun in shipment that is covered by insurance then a part that may be hard to get. Even if it was covered by insurance a lost part would suck. I know the odds are slim but... Well I guess I could insure the part for the full cost of the gun.
Anyway I have been running into some minor issues with this project that Im not happy about. So far everything is working out but I want the part to be as close to the original part as it can be. Also the inner threading is a bit of a pain with the way its recessed in there. Another problem I am running into it that every time I want to air up the pistol the suppressor must come off. I could use a smaller one however in most cases it would not work near as well. Having the sumo on there brought that bark down a good amount. And I do mean quite a bit. I did try another sound mod that I had orgionaly got for my vulcan and it was not near as effective. It was not a DonnyFL though. Im going to scrap the project for the time being. Because standing in front of a lathe for a few hours takes me away from other things I can be doing. 

I like those numbers you got after adjusting the reg. Im currently at 592fps with the 15 grain JSBs. Was set factory at about 558. I will be bumping it up just a bit more but not to much. I like the high shoot count. 
 
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I popped John Hagen an email this afternoon so we'll see what he says. 

I'll probably drop the fps down to the 650-700 range to maintain some level of shot count. But I don't use it much now due to the volume. Once the volume is squared away I'm sure it'll see more range time.

I was wondering - what pistol scope did you use on the Ocelot? I tried a Nikon one and was not very happy with it. The sight picture was impossible to acquire and maintain.
 
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I actually looked around at scopes for a good while and even purchased one that I regret picking up. It was shown to be a bow/handgun scope. I figured I would give it a shot. I still had to bring the thing up to near to my face. I mean its a pistol and I want to hold it out like a pistol. I did find a UTG scope on midway. An actual handgun scope at that. 2x7x32 with a fixed parallax of 35 yards. I was not to enthused about a fixed parallax but I gave it a shot. It worked out fine for the most part, and I was able to hold the thing out like I wanted. I would use it for hunting but Im also glad I did not buy a much more costly one. As far as holding the sight in the right spot lined up with my eye. It did take me some getting used to but was not bad at all. There were some really nice optics out there for a handguns but the price was far to steep for me not knowing if I was going to like a scope or not. As of recently the hawke mini red-dot has been my favorite. It puts the pellet where I want it and if not it was because of my crappy shooting.
 
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