Can anyone here make me a pellet swag die for me????

[Pellgunfun]

I took your latest design and use straight tapers and smaller core pin radii to take weight out of your design. 

I also added an 0.005" radius to the edge of the nose cavity, because making such a sharp edge will take more than 50k PSI swage pressure; and the resultant slug will be easily dinged.  I would like to make the radius at least 0.01", but it is not my design...

Yes some radius is good, but with the limitations of CB Design it was WAY to much radius.  I haven't found a way to reduce the radius in that software, as it seems hard coded.  At this point it's anyone design.  It's just something I cooked up on CB Design.  I have no claim to it, as I just play around with the software experimenting with different dimensions and shapes.  lol.

On this version I had to reduce the overall length a bit down the .330.  With that I was able to hit 14.3 gr.  I do really like your radiuses better than what is avail in CB Design. 

[subscriber]

I did a version as described in my previous post, with a nominal cavity outer diameter of 0.125".  This dropped the slug weight by a whole grain.  It also moved the CG behind the forward edge of the driving band.  Study the last image in the series below:

That suggests a version in between may be a good compromise.  One with a nose flat of 0.115" perhaps.

Your latest design with the shorter bearing length could be made to work too...

[Pellgunfun]

Heck with that you could play with the nose length to hit 14.3 gr spot on. 

Like I was saying earlier, I wish I could keep the hollow base at .130, but the only way I can see to make the slug lighter is to use a deep hollow base.  Oh well such is life, always a compromise. 

P

[darkcharisma]

rather than making a swaging die. why not just buy NSA slugs in the lightest weight? 17.5grains/400 count for $19. that will save you time and money compared to making a die and producing a slug design thats not yet proven to fly true=$ down the drain.

i have gone down that path once. and i am again going down that path now...$ down the drain...

[Pellgunfun]

rather than making a swaging die. why not just buy NSA slugs in the lightest weight? 17.5grains/400 count for $19. that will save you time and money compared to making a die and producing a slug design thats not yet proven to fly true=$ down the drain.

i have gone down that path once. and i am again going down that path now...$ down the drain...

Cause I have dozens of tins of CPHP and CPD pellets laying around.  Also I can get 500 CPHP for 6 bucks.  Plus I like to tinker around.  Besides, who knows I might just accidentally stumble onto something that works perfectly.  Sometimes even a nitwit like myself can come up with something good. 

[Madd Hatter]

Why are you limiting yourself to 14.3 grains? Why can't you just use 2 with enough squeeze out to eliminate any cavatation? You could design for any weight up to maybe 25 grains. Just a suggestion 🤔.

[subscriber]

Why are you limiting yourself to 14.3 grains? Why can't you just use 2 with enough squeeze out to eliminate any cavatation? You could design for any weight up to maybe 25 grains. Just a suggestion 🤔.

I am not sure you can "weld" two pellets together by swagging them together in the same die.  However, you may be onto an idea worth exploring:

Swage a separate tail section and nose section that are then pressed together in a light interference fit.  This should enable optimization of the combined projectile and for swagging the two individual segments.

[Madd Hatter]

That's why I said squeeze out to eliminate cavatation.

[Pellgunfun]

Why are you limiting yourself to 14.3 grains? Why can't you just use 2 with enough squeeze out to eliminate any cavitation? You could design for any weight up to maybe 25 grains. Just a suggestion 🤔.

I was just hoping for a 1 to 1 quick press.  Just drop in a pellet, and pop out a slug.  Also keeping the weight down gives me a better shot count without re-tuning my guns.
Also in my little mind it just feels so wasteful to launch a big heavy chunk of lead from an air rifle when a lighter piece will do.  I suppose shooting little tiny pellets all my life has messed up my thinking on that a bit.  Ya know it's funny though, I don't have that feeling when it comes to powder burners.  I suppose I'm just weird like that.

Ultimately I may end up abandoning this pipe team of mine, and just move to using lead wire to cut cores in something like 16 grs or so.  To me it's just silly to send a huge lump of 35, 40 grs down range just to hit a tiny little bird.  Sure, using heavier longer slugs might give a better BC and buck the wind a bit better, but it's still WAY overkill.

But that's just one knuckleheads opinion. 

[Madd Hatter]

What rifle are you going to use these in? My.22 Liberty seems to work best with around a 25 grain right now but it has had a lot of tuning done to it. My Aspen on the other hand works real good with 18 to 21 grain pellets.