Panthera FX Bull barrel for Panthera

[Auto1191]

I’m really confused and my world has been turned upside down. @Cantona256 you're now saying the FX Panthera MKII is a gun that you want.? It’s a powerhouse? What the heck happened to $2500+ airguns being a waste of money? Now you’re considering joining this group of brand loving, overpriced Airgun fanboy club?
Everyone keep your knickers on, I’m just joking with him.

I think and I no @Cantona256 is on track with his wording . The Panthera has the power with right projectile ( ,40 Frag) to dispatch coyote. This is a topic that may get sketchy with others , so be it. It all boils down to shot placement with the right projetile and distance to target. Headshot is without a question in my opinion the best. I actually know of Deer hunters that do headshots & it's a messy situation, but it gets the job done. Some will say .30 and up. Back in the day , all the hunters had 22lr bolt action rifles. No .30 cals .357 or Big Bore air rifles.They had what they had and used it. I not saying to go hunt coyote with a break barrel lol The armadillo that you have on your property is 20 lbs at best if this true how many ft/lbs to you think is required. This might be getting off topic & wrong place to post , if so I apologize to all

 

[Powermonger1]

Don’t get me wrong. You’ll be running the reg at a higher level. Some can go as high as 210 bar and some can go the 225.
You’ll have to install a defection washer in the valve body or be replacing the Orings or valve body all the time. No fun! But the washer has po enter the blowout since then and when installed is angle 45 degrees upwards, benefit. You should get away with the 22 700 for the power increase. There is a guy who made my titanium hammer and extra brass weights in different weights to play with till you get the right weight in. Heavy spring. I did this for the griffins because of the coyotes around here and like the 78-108 grainers. The 135 grainers are noe 308 sized down too 300 also bthp. I get 1 hole groups the size of a dime at 75 yards and I mean really one hole groups little larger than the slug. But the need the speed. I can get up to 1000 with the 78 grainers and think it would have to go to a 34” barrel like the Texan to break the sound barrier with the heaviest. I don’t have my machines anymore but maybe soon I’ll get another lathe.

 

[Powermonger1]

I think and I no @Cantona256 is on track with his wording . The Panthera has the power with right projectile ( ,40 Frag) to dispatch coyote. This is a topic that may get sketchy with others , so be it. It all boils down to shot placement with the right projetile and distance to target. Headshot is without a question in my opinion the best. I actually know of Deer hunters that do headshots & it's a messy situation, but it gets the job done. Some will say .30 and up. Back in the day , all the hunters had 22lr bolt action rifles. No .30 cals .357 or Big Bore air rifles.They had what they had and used it. I not saying to go hunt coyote with a break barrel lol The armadillo that you have on your property is 20 lbs at best if this true how many ft/lbs to you think is required. This might be getting off topic & wrong place to post , if so I apologize to all

I’ve shot a coyote with the Ensign in 22 after I did my regulated bulk fill invention where I increase the power out put by 1/3. Was getting 1200 fps with Kodiak at 3000 psi was the fist regulated airgun. About 25 30 yards away 1983

 

[Auto1191]

Don’t get me wrong. You’ll be running the reg at a higher level. Some can go as high as 210 bar and some can go the 225.
You’ll have to install a defection washer in the valve body or be replacing the Orings or valve body all the time. No fun! But the washer has po enter the blowout since then and when installed is angle 45 degrees upwards, benefit. You should get away with the 22 700 for the power increase. There is a guy who made my titanium hammer and extra brass weights in different weights to play with till you get the right weight in. Heavy spring. I did this for the griffins because of the coyotes around here and like the 78-108 grainers. The 135 grainers are noe 308 sized down too 300 also bthp. I get 1 hole groups the size of a dime at 75 yards and I mean really one hole groups little larger than the slug. But the need the speed. I can get up to 1000 with the 78 grainers and think it would have to go to a 34” barrel like the Texan to break the sound barrier with the heaviest. I don’t have my machines anymore but maybe soon I’ll get another lathe.

I think the Panthera is tapped for all the power , with reg at 150. Could I get more out of it probably. Another thought is to get a custom valve made for it !!! FX will soon enough come out with another reiteration of the Mk2 Panthera. The all New Panthera Mk3 LOL. . Just enough for us to go ooh wow I have to get this. No matter how they slice it, it still an Fx that does the same as before. Just a few upgrades. I still own & have my .357 AAA Slayer. A True compact power house. I have to ask is it really worth going through all this trouble to make something work . . All FX rifles in their own respectful caliber do the same amount of FT/lbs of energy as their predacessor MK 1 MK2 MK3 MK4, do you get what I am saying. These rifles have to be heavily modified to put out more. Forget about the acessories they try to sell (marketing) . Out of the box they are not heavy hitters. you have to do this & that, & hope it doesn't brake or leak. Their is alot of truth from what you said. I have nothing to loose but try anyway. What you have has to be a powerhouse. 78 gr @ 1000 fps is nothing to turn your nose up to. If you know of a way to extract more power out of the Panthera 700 .22. Please comment. We all would like to know! If it comes down to it, I will use my Slayer in .357. I posted here before about anchoring a coyote & 68 yards with the Slayer , as old as it is , It's what I call a performer. Nothing wrong with the OLD STUFF , it does the same job & does it well. I was thinking about a HP .22 for coyote, & I don"t know if the Panthera is up to the task, we shall find out.

 

[Auto1191]

I’ve shot a coyote with the Ensign in 22 after I did my regulated bulk fill invention where I increase the power out put by 1/3. Was getting 1200 fps with Kodiak at 3000 psi was the fist regulated airgun. About 25 30 yards away 1983

This is what I am talking about it can be done. This is what people had back in the day & they used what they had, before all this new stuff came . Good to hear.

 

[Auto1191]

What I originally wanted was the .22 Panthera 700 with Bull Barrel to be a long range coyote rifle with High Power. 5 minutes from my house I have open fields , with cranberry bogs. On my 4 wheeler & go. This is why I chose the Dnt Thermnite 635r & my Sightron 5x40x56. To be able to get out their, in the tree line. They are active Day & night . Some fields open up to 300 yards plus, I know I could'nt shoot that far with an air rifle LOL. . But 75 yards & under I would. This is why I need speed or high fps junky that I am with accuracy. or like Powemonger1 says hole in hole. Airguns have their limits. , Espeacially small bore.

 

[Powermonger1]

I think the Panthera is tapped for all the power , with reg at 150. Could I get more out of it probably. Another thought is to get a custom valve made for it !!! FX will soon enough come out with another reiteration of the Mk2 Panthera. The all New Panthera Mk3 LOL. . Just enough for us to go ooh wow I have to get this. No matter how they slice it, it still an Fx that does the same as before. Just a few upgrades. I still own & have my .357 AAA Slayer. A True compact power house. I have to ask is it really worth going through all this trouble to make something work . . All FX rifles in their own respectful caliber do the same amount of FT/lbs of energy as their predacessor MK 1 MK2 MK3 MK4, do you get what I am saying. These rifles have to be heavily modified to put out more. Forget about the acessories they try to sell (marketing) . Out of the box they are not heavy hitters. you have to do this & that, & hope it doesn't brake or leak. Their is alot of truth from what you said. I have nothing to loose but try anyway. What you have has to be a powerhouse. 78 gr @ 1000 fps is nothing to turn your nose up to. If you know of a way to extract more power out of the Panthera 700 .22. Please comment. We all would like to know! If it comes down to it, I will use my Slayer in .357. I posted here before about anchoring a coyote & 68 yards with the Slayer , as old as it is , It's what I call a performer. Nothing wrong with the OLD STUFF , it does the same job & does it well. I was thinking about a HP .22 for coyote, & I don"t know if the Panthera is up to the task, we shall find out.

I find that the smaller the caliber the more the barrel restricts the air flow too. Been working on my 25 Dynamic and the 68 grainers don’t give me what I want and that’s why I’m waiting on the 800mm solid barrel in 25 to see if the length is what is holding it back. I should be pushing at 1000 fps but I’m not. I can’t download videos here or I would do the videos over again

 

[Auto1191]

I find that the smaller the caliber the more the barrel restricts the air flow too. Been working on my 25 Dynamic and the 68 grainers don’t give me what I want and that’s why I’m waiting on the 800mm solid barrel in 25 to see if the length is what is holding it back. I should be pushing at 1000 fps but I’m not. I can’t download videos here or I would do the videos over again

That is true . Even with the reg on my .30 King had a reg psi of 113 to launch the 50 grain & 935 to 950 fps

 

[Cantona256]

Awesome. If FX would enlarge the valve body by 1/2 at least. It would be easier to achieve the results. When I was doing the power mods on the Sam Yang and the career 25cal to 410 shotgun back in the late 90s i was milling slots done the side of the valve body and a 3/8inch hole drill through at the face giving a increase of about 25-30 percent. I would take an HR topper 410 barrel and turn it to fit the 201. Boring out the shot cups to hold the .410 wads shooting a 5/8 oz load at 900 fps with the mod. At 3000 psi

As a machinist this is the type of stuff that gets me hyped haha