FX A question for FX experts about the tungsten hammer in M3

[Airgunmann]

Any chance shooting pellets in .25 with a tungsten hammer and 140 bar on 1 power wheel??? 700 mm barrel.

Jump to the 34 gr pellets and you should be able to get them up to speed with out a problem I like to stay around 900 fps with them but I would go to 150 on the reg and turn in the valve control to shave off the last little bit of speed to help balance it out some

 

[markovic79]

You might be surprised as far as shot count goes a shorter burst of higher pressure seems like the impacts do better that way instead of the lower reg setting where the dwell is longer or valve stays open longer

As for the high pressure and small hammer, the number of shots is good but the consistency is bad. With my wildcat, it varies by 30 fps... Consistency is important to me, so the only solution is the max speed for a certain pressure and lowering the hammer a little lower by 10 fps...

 

[markovic79]

Preskočite na pelete od 34 gr i trebali biste ih moći ubrzati bez problema. Volio bih ostati oko 900 fps s njima, ali bih otišao na 150 na regularnoj razini i uključio kontrolu ventila da izbrišem zadnji malo brzine da pomogne u ravnoteži

Da, mislio sam na JSB heavy 34 gr.

 

[Airgunmann]

Yeah it can have that effect it's a little different on the impact because of the valve adjuster which can help your extreme spread if your 20 fps or under it's hard to tell your aim points really don't shift at that

 

[markovic79]

I also don't understand the statement that tungsten is too heavy for everything below 150 bar. So if I set the wheel to 1, is it too heavy? I consciously lose the highest settings, but also with the factory hammer I lose the lowest settings. I probably won't be able to shoot Exact 1.645 but with the factory hammer I won't be able to shoot 41 grains and over... I'm talking about .25..

 

[markovic79]

I forgot to mention that in such lower pressure situations with tungsten, I read somewhere about high ES. That would be a problem. If anyone has experience, please write your opinion.

 

[Privateer]

Make a good Brass Hammer. It's mid way between both and gives good results.
You can also make them heavier or lighter if that works for you.
I make my own and am making a few more in the next few days.

 

[MEC17670]

Certainly NOT an expert... but..
I am using the Tungsten hammer in my M3 22cal.

ist reg @ 180
2nd reg @ 145
MICRO @ 5
MACRO @ 3 ish
Front Valve #line 4
27.5gr NSA @ 1030fps..

Shoots less than 1/2 moa at 150yds..

View attachment 376533

View attachment 376534

150 yards?

 

[wooferocau]

150 yards?

Yep...

 

[Airgunmann]

It takes more force to open the valve at 150 plus bar you could probably get away with using a tungsten using less spring pressure but it might not be ideal give it a shot worst you can do it break something parts for fx guns are readily available it may work just fine

 

[Steven Sebastian]

You might be surprised as far as shot count goes a shorter burst of higher pressure seems like the impacts do better that way instead of the lower reg setting where the dwell is longer or valve stays open longer

The dwell of the valve needs to match the length of the barrel, too short of dwell lowers velocity potential, too much waste air and effects accuracy do to excessive muzzle blast. Harmony is what we strive for. Heavier (tungsten) hammers are better suited for longer barrels 700 +. If you max out your hammer and keep- adjusting down hammer tension with no velocity change, the amount of adjustment where significant velocity drops off is where your max setting is. Everything above that is wasted adjustment space on the high end.

 

[Airgunmann]

Really because I've been able to take a higher burst of HP air and push a pellet or slug from a 600mm barrel and get the same speed as I was running with 700mm barrel this isn't my first rodeo yes it can be loader or use more air but there can be a sweet spot in tuning that way as well

 

[DesertSilver]

What if you use very little hammer spring? Physics says velocity is displacement or how far an object moves, divided by time. If you make the hammer spring less, the time for it to travel will be longer. Thus since the denominator is getting larger, then the velocity will be slower.

Basically what I’m saying is…go to 135 bar, and use a lower hammer spring setting with the tungsten hammer. It would be like using a heavier pellet and shooting it at 600 fps. Versus shooting a lighter one at 800 FPS. Same energy output, one is just heavier.

This way I can keep the tungsten hammer, and then go up in power if need be.

Would it not be the same concept?

The problem with that is increased lock time.