Panthera FX Panthera MKII .30 700mm My First FX

[Billm]

The aea 50 is supposedly.07

Where do you see that at.

 

[Solo1]

Advertised by shooters on agn thats why everyone is shooting them

 

[Madhatter]

The problem with G1 is you get a higher BC the faster the projectile is pushed.

 

[Billm]

Advertised by shooters on agn thats why everyone is shooting them

I misread your post, I thought you were talking about the 66.2. BCs between two different calibers doesn’t mean much. Because BC is proportional to Sectional Density, the heavier projectile will usually out perform a smaller caliber projectile at longer ranges. Personally, I don’t really care what a pellets BC is. I’d rather just see how it performs real world.

 

[Auto1191]

I misread your post, I thought you were talking about the 66.2. BCs between two different calibers doesn’t mean much. Because BC is proportional to Sectional Density, the heavier projectile will usually out perform a smaller caliber projectile at longer ranges. Personally, I don’t really care what a pellets BC is. I’d rather just see how it performs real world.

If you don't mind me asking what are your final settings you settled on for slugs & or pellets Name that tune lol & please let me know if you are 100 % Happy with your purchase.

 

[Billm]

If you don't mind me asking what are your final settings you settled on for slugs & or pellets Name that tune lol & please let me know if you are 100 % Happy with your purchase.

Here’s as honest of an answer as I can give. I haven’t settled on a tune yet. I’m probably doing too much dabbling. Currently I’m shooting the AEA 50.5gr pellets at 936fps. 135bar. I get about 23 shots at that tune. It’s probably a 95% tune. I haven’t touched the regulator since FX-USA set it to 140 bar, it has crept down to 135 bar. One of my best groups was with the AEA 66.2gr pellets - most posts say they’re not very good. All of this is with the 700mm 1:40 pellet liner. Both pellets and slugs shoot well out of the 700mm 1:16 liner. The weird part is that the Standard Deviation (SD) went from less than 4 to 7-9 when switching to the pellet liner. It is not projectile choosy at all and seems to shoot well from 850-980fps. I would say it is my most accurate slug gun. Build quality could be better for the price, as in harder alloy. I do not regret buying the Panthera MKII at all. As a matter of fact I would like one in .22 as well. But, that might get nixed to try a an RTI Mora.
I would like to maybe drop the reg to a pressure that allows 30 shots, just so that I could shoot a 25 shot benchrest card without refilling.
It has the best trigger of any of my airguns. All in all, it’s a real pleasure to shoot. If I could only keep one airgun right now, it would probably be this one. But, the BRK Sonoran and Ghost are close.

 

[Auto1191]

If you don't mind me asking what are your final settings you settled on for slugs & or pellets Name that tune lol

 

[Solo1]

Here’s as honest of an answer as I can give. I haven’t settled on a tune yet. I’m probably doing too much dabbling. Currently I’m shooting the AEA 50.5gr pellets at 936fps. 135bar. I get about 23 shots at that tune. It’s probably a 95% tune. I haven’t touched the regulator since FX-USA set it to 140 bar, it has crept down to 135 bar. One of my best groups was with the AEA 66.2gr pellets - most posts say they’re not very good. All of this is with the 700mm 1:40 pellet liner. Both pellets and slugs shoot well out of the 700mm 1:16 liner. The weird part is that the Standard Deviation (SD) went from less than 4 to 7-9 when switching to the pellet liner. It is not projectile choosy at all and seems to shoot well from 850-980fps. I would say it is my most accurate slug gun. Build quality could be better for the price, as in harder alloy. I do not regret buying the Panthera MKII at all. As a matter of fact I would like one in .22 as well. But, that might get nixed to try a an RTI Mora.
I would like to maybe drop the reg to a pressure that allows 30 shots, just so that I could shoot a 25 shot benchrest card without refilling.
It has the best trigger of any of my airguns. All in all, it’s a real pleasure to shoot. If I could only keep one airgun right now, it would probably be this one. But, the BRK Sonoran and Ghost are close.View attachment 21951

Bill first off for a 25 shot card at a match you should be prepared to shoot at least 50 shots if not more. Its seldom that that the wind allows for less. 2nd have you pushed a pellet through your pellet liner to see what the inner diameter feels like? Its possible that is the cause for the higher sd that and possibly weigh a few pellets as a small change in weight has an affect on velocity therefore sd. By the looks of it you had 2 shots that killed your sd

 

[Billm]

Bill first off for a 25 shot card at a match you should be prepared to shoot at least 50 shots if not more. It’s seldom that that the wind allows for less. 2nd have you pushed a pellet through your pellet liner to see what the inner diameter feels like? Its possible that is the cause for the higher sd that and possibly weigh a few pellets as a small change in weight has an affect on velocity therefore sd. By the looks of it you had 2 shots that killed your sd

I’ve pushed a pellet through it, but probably will do it again. I was thinking the same thing, maybe the groove diameter is a little larger. But, it’s always two or three shots out of 10-15 and some of them are 25fps off. It makes it’s enough to be a 1 or two point difference. It would explain FX not being sure what was causing the SD swings. They asked me to put it back into the box stock configuration and so I swapped the liner back to the slug liner and put the AMP II back in.

 

[Solo1]

I could be the pellets too centercut claimed the aea pellets had a redesign that led to head diameters being off sized but i havent seen it in the pellets i have.

 

[Billm]

I noticed that my reg crept back up to 140 bar today. After shooting for a little bit it crept back down. My POI seemed to gave changed by a Mil since yesterday. I’m sure some I was from wind. I decided to use the macro and shoot some groups from 850 fps up to where it maxed out, it maxed out at about 1015 fps. dialed it back to a 94% tune. I did that based upon the fact that both my Ghost and Sonoran seem to like a 93-94% tune and thought it would be a starting point. 972fps. My groups instantly tightened up and the POI shifted to the POA except for 1/2 Mil high. The SD stabilized at a little over 4. I shot a few more groups and the SD remained consistent.

 

[Billm]

The adventure never ends. Today’s shooting session ended early with a jammed Panthera MKII. My fault my fingers slipped of the charging handle in the 85% humidity, 100f heat index at 7pm. Welcome to Florida . I figured it attempted to double stack. The charging handle won’t move through the magazine and the magazine won’t eject. Later on I’ll pull the liner and see if that helps. It’s a pity. It was shooting well. Now, it’s trying to nudge the Sonoran off the wall of shame., where they wait to be fixed .

 

[Billm]

Well. It was relatively quick fix. I put an X-Acto blade upside down in the handle so that I wouldn’t do any damage. Then I slid the blade under the magazine cover and rotated the magazine drum while I held the cocking handle fully back. That allowed me to remove the magazine. The slug was trapped between the barrel and the magazine. After removing the mag, I used a carbon Dewey rod from the muzzle to push the mangled slug out of the breech. I figured while I was working on it, I would replace the Amp reg with the Huma regulator.

 

[Billm]

So, I set the Huma flush when I installed it so that I could start low and then increase the pressure. I refilled the rifle and then set the reg to 130 bar. That was 10 bar below what Fx said they set the A,P reg to, though most times it actually read 135bar. To my surprise that after working on the rifle and swapping the regulator, the POI was right on where the POA was. The velocity had actually slightly increased. The Huma regulator is definitely in my opinion more efficient than the AMP II reg.. my Panthera Macro dial like a lot of others apparently won’t index on 13. That’s somewhat ironic considering that DX states “13” should be the base setting. I shot three decent 5x5 100yd targets before it jammed last night. I will try to shoot another with the Huma regulator. Yes, I know I’m rambling to myself, but these are kind of my reference notes LOL.

 

[hameditor]

So, I set the Huma flush when I installed it so that I could start low and then increase the pressure. I refilled the rifle and then set the reg to 230 bar. That was 10 bar below what Fx said they set the A,P reg to, though most times it actually read 135bar. To my surprise that after working on the rifle and swapping the regulator, the POI was right on where the POA was. The velocity had actually slightly increased. The Huma regulator is definitely in my opinion more efficient than the AMP II reg.. my Panthera Macro dial like a lot of others apparently won’t index on 13. That’s somewhat ironic considering that DX states “13” should be the base setting. I shot three decent 5x5 100yd targets before it jammed last night. I will try to shoot another with the Huma regulator. Yes, I know I’m rambling to myself, but these are kind of my reference notes LOL.

Bill, thanks for sharing your experiences!