Lead for slugs

[Enkey]

Hi guys

Does anyone know what the composition of lead is to make slug, to give it the necessary hardness and to avoid the lead of the barrel

Regards 

Enkey 

 

[Raden1942]

Well there is alot of answers to that question. What I would do is start with pure lead and then add a tiny bit of tin for the next batch and more on the next and more on the next until you start seeing problems. Honestly I have only used melted lead and it just works, however much of my lead is cph dug out of my trap. They most certainly have alloy in them. I just don't worry about it but you should do trial and error or start with a recipe that's working for somebody else. Good luck. 

 

[harrymoreland]

raden1942 covered it, also see Gregor Kamensek, on YT , he did a few cast slug videos, mainly based on the Huben K1 but with lots of information on lead/tin (antimony) mix.

good luck

 

[Enkey]

Hi Raden

Thanks for sharing your thoughts I also have large amounts of lead recovered from my pellet trap

Regards 

Enkey 

 

[Enkey]

Hi Harrymoreland

I will review what Gregor says, I have a local lead distributor that has different percentages of antimony so I wanted to collect information. 

Thanks for sharing

Regards 

Enkey 

 

[Loren]

Are you casting or swaging?

I use pure lead when casting for AG use. It's the least expensive, and soft is good. Lube or powder coat your bullets to prevent leading. Adding antimony or tin is used to increase compressive strength of the alloy and is just not needed at AG pressures.

 

[Pale_Rider]

Are you casting or swaging?

I use pure lead when casting for AG use. It's the least expensive, and soft is good. Lube or powder coat your bullets to prevent leading. Adding antimony or tin is used to increase compressive strength of the alloy and is just not needed at AG pressures.

Generally speaking antimony is not needed for airguns but it is needed for guns that shoot the slugs directly from the mag. Gregor discovered that pure lead slugs were being deformed when being shot directly from the Huben mag into the barrel. The added hardness from the antimony prevents damage, thereby increasing accuracy. 
If anyone has tried GTO pellets in their huben and noticed the superior accuracy; it’s because of the hardness of the lead free alloy.

 

[Enkey]

Are you casting or swaging?

I use pure lead when casting for AG use. It's the least expensive, and soft is good. Lube or powder coat your bullets to prevent leading. Adding antimony or tin is used to increase compressive strength of the alloy and is just not needed at AG pressures.

Generally speaking antimony is not needed for airguns but it is needed for guns that shoot the slugs directly from the mag. Gregor discovered that pure lead slugs were being deformed when being shot directly from the Huben mag into the barrel. The added hardness from the antimony prevents damage, thereby increasing accuracy. 
If anyone has tried GTO pellets in their huben and noticed the superior accuracy; it’s because of the hardness of the lead free alloy.

Hi

Thanks for your contributions.

Legionair

I am doing precision testing with my Huben 2020 and I have obtained some good results, and the truth is that there are also quite a few flyers, so I have been able to observe the large size of the pellet housing in the Huben 2020 magazine. 25 cal makes the Slugs remain loose and are not aligned with the barrel and also hit and deform their tips with the barrel when rotating the magazine, I know that there are people who are working on the magazine but have not obtained good results yet

Regards 

Enkey 

 

[Loren]

What shape of bullet are you using and how long is it and how long is the bearing surface? Have you slugged the barrel for size?

 

[Enkey]

Hi Loren

I am using HP 254 cal slugs, the magazine has not been disassembled to take measurements but you can see with the naked eye how the slugs move inside. The barrel slugged measurement is .2519"

I have tested 250,251,253,254 slugs and the best results have been 254"

Regards 

Enkey