FX Fx dynamic expres 700 cal .25 And talking about hammer weight

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darknes

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Aug 1, 2023
202
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czech republic
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hello everyone, I'd like to introduce my new addition and share a setup test in the foundation. the only modification consists in the reduction to the front bottle from saber tactical + ALU 500cc. overall 980cc on the gun. element optics helix 6-24x50 ffp apr-2D mrad riflescope, eagle vision assembly.
performance test - regulator 180 Bar, macro and micro on full, slug NSA 55.5 grain= 146 Joules.
Screenshot_2023-08-13-14-43-23-493_com.cacciato.balistic.jpg
I am currently satisfied with the performance😀
I would just like to ask the more experienced people about the Tungsten hammer whether to give it so that I don't have to have the setting always at the maximum if I would like to have this performance but have the option of reducing or even increasing the performance for using heavier ammunition from Altaros 60 grain?
I wonder if you know how big the difference in weight is between the original hammer and the Tungsten one?
 
FX backed away from using tungsten with the Panthera because of valve pin damage. Not sure if that is still considered an issue.

My experience with Altaros is that they like to fly at 900fps max, which means that you won’t need any extra push.

I’m kinda surprised that you need to push all the way to 180bar to get that power. Did you try lower reg pressures?
 
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To me it seems like you have your dynamic reg a little high for what you are doing. But I do not have a dynamic.

Have you tried the Queens yet? It depends on whether your 700mm likes the 6.35 or 6.36 .25 Queens. If your 700 shoots the 6.35 well you will have no problem shooting the 60 gr Queens. And will most likely need to turn down your settings. The 6.36 will have more resistance in the 700mm and thus need more power, but from my experience the queens tend to shoot the best at speeds hovering 900fps. I don't have a dynamic but from what I known the dynamic has as much or more power than a modified impact with a titanium hammer which is what I have. From what i have read Qball has a dynamic 700mm and has fired the 60gr with a lot of success. Check out his post, maybe he has stated his settings to get the queens working.

Allen
 
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weevil said:
FX backed away from using tungsten with the Panthera because of valve pin damage. Not sure if that is still considered an issue.

My experience with Altaros is that they like to fly at 900fps max, which means that you won’t need any extra push.

I’m kinda surprised that you need to push all the way to 180bar to get that power. Did you try lower reg pressure.
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I did tests for different slug weights and also tried all regulator pressure settings and hammer spring settings. I also wanted to try the maximum setting of the rifle and I know what it can do.
i only use the heavier slugs 49 grain and up for long range shooting and test the settings for best accuracy and shot count.
fx for panthery/dynamic states that for heavier slugs and greater power, Tungsten hammer should be used.
I am mainly interested in the weight difference between the original hammer and the Tungsten hammer.
 
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weevil said:
FX backed away from using tungsten with the Panthera because of valve pin damage. Not sure if that is still considered an issue.

My experience with Altaros is that they like to fly at 900fps max, which means that you won’t need any extra push.

I’m kinda surprised that you need to push all the way to 180bar to get that power. Did you try lower reg pressures?
Click to expand...
yes, I tried all the pressure settings, but only on this one did I get this result.
regarding the stem valve, fx made a new stronger version so that it does not get damaged like the first version. maybe that's why they state that you need to use a Tungsten hammer. I really have no idea.
 
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Healthservices said:
To me it seems like you have your dynamic reg a little high for what you are doing. But I do not have a dynamic.

Have you tried the Queens yet? It depends on whether your 700mm likes the 6.35 or 6.36 .25 Queens. If your 700 shoots the 6.35 well you will have no problem shooting the 60 gr Queens. And will most likely need to turn down your settings. The 6.36 will have more resistance in the 700mm and thus need more power, but from my experience the queens tend to shoot the best at speeds hovering 900fps. I don't have a dynamic but from what I known the dynamic has as much or more power than a modified impact with a titanium hammer which is what I have. From what i have read Qball has a dynamic 700mm and has fired the 60gr with a lot of success. Check out his post, maybe he has stated his settings to get the queens working.

Allen
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Thanks for the information. I messaged him so I'll see 🙂
 
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The Tungsten is the same one used in the Maverick or Wildcat and is 26.5g. My understand is that it is still not advised to be used with the Panthera and that there is a heavier “8mm” non-Tungsten that can used up to 175bar. You may be the first to want to do this with the Dynamic, so I would suggest asking FX what is in it and if the Tungsten is still not-advised. Please let us know!
 
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so the slugs from altarose 60 grain Queen arrived. I immediately tested them and the result is that at 170 bars and 21macro+4micro it is 893fps. I tried to add it, but the air consumption is already higher without changing the speed. so I was looking into the possibilities and in some states dynamics are supplied with a stronger spring. in total there are 3 versions, one for states with performance restrictions, then other states and the last version for companies that modify airguns.
this also applies to the versions of the hammers, there are a total of 4 versions of 4mm, 6mm and two versions of 8mm, and the heaviest is half the weight of the Tungsten hammer.
so the only option left for me is to disassemble and measure and weigh the hammer and measure the spring so I know which version I have. it is possible that the version for the US market is more powerful than for the Czech Republic where I live.
 
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darknes said:
so the slugs from altarose 60 grain Queen arrived. I immediately tested them and the result is that at 170 bars and 21macro+4micro it is 893fps. I tried to add it, but the air consumption is already higher without changing the speed. so I was looking into the possibilities and in some states dynamics are supplied with a stronger spring. in total there are 3 versions, one for states with performance restrictions, then other states and the last version for companies that modify airguns.
this also applies to the versions of the hammers, there are a total of 4 versions of 4mm, 6mm and two versions of 8mm, and the heaviest is half the weight of the Tungsten hammer.
so the only option left for me is to disassemble and measure and weigh the hammer and measure the spring so I know which version I have. it is possible that the version for the US market is more powerful than for the Czech Republic where I live.
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Is there something wrong with 893 fps? Those slugs were designed to operate at 850 to 900 fps. Seems like you are in the sweet spot?
 
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darknes said:
it's not bad. as for the slugs, the indicated speed is only the speed at which the BC sits. at other speeds, the indicated BC only decreases. hence it is written as the optimal speed
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So does the round get more accurate as it travels down range when shooting with a higher muzzle velocity?
 
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_CTAIRGUNNER_ said:
So does the round get more accurate as it travels down range when shooting with a higher muzzle velocity?
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personally, the accuracy has not changed in any way, only the impact speed on the target decreases when the BC decreases and also the drop of the projectile at a distance, but the difference between 900 fps and 960 fps is not big, at least I did not notice it much. it's worse if the speed is higher than 960 fps, then the accuracy is thrown away
 
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