Re use a copper bullet?
- Thread starter Bavarianbrit
- Start date
Kiwiguy
Well-Known Member
Hammer copper bullets are machined in CNC lathes to apparently very exacting tolerances.
Smellydog
Well-Known Member
Pretty much every copper/copper alloy bullet on the market is machined. The most practical process when you think about it and really what has made them possible for the mass market. Facilitates the creation of different diameters (common with these bullets), the cutting of the driving bands, drilling of hollow points or turning of other tip styles. Modern CNC machines means you can turn them out in high numbers very economically, with very high accuracy and excellent surface finish.Yeah, I stand corrected.
I'm surprised they are not swaged.
Miles
Not sure punching small diameter holes through something with a reduced velocity solid copper bullet, no matter how lovingly crafted, would fit the definition of "humane despatch".
Most professional codes (veterinary, commercial slaughter, livestock production etc) recommend humane destruction by a frontal or temporal shot to the head to destroy the cerebral cortex/stem. Usually recommended is a soft lead bullet in the slower or pistol type calibres like ,22LR/WMR, .357 or .38. A shotgun just inche from the skull is also very effective (and prefered by many) and accommodates non-toxic where required. Not as messy as it sounds.
Miles
Bavarianbrit
Well-Known Member
Smellydog
Well-Known Member
Who gives a ....Will it achieve the 1-2000 joules of energy at 100 meters required in your neck of the woods?
Bavarianbrit
Well-Known Member
Don't know but I have just sent it into the ground out in a field near me shot it 15m in front of me and it went off with no issues, recoil was normal, so that's the end of that experiment. A one off.
Bavarianbrit
Well-Known Member
GRT gives for this weight of projectile these figures.Will it achieve the 1-2000 joules of energy at 100 meters required in your neck of the woods?
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Hi Miles.
You mention .22lr. Would this cartridge reliably penetrate the skull of various livestock?
I thought that Barnes cold head their copper bullets?
I’d imagine that a lot of the smaller manufacturers are turning them as a CNC lathe or 2 is far cheaper than a wire fed cold heading machine, plus a of course the flexibility of a CNC.
For serious quantities in the millions, such as Lake City making copper cores for the US Millitary EPR bullets they’re using wire fed cold forming machines as there is very little waste and they can run at high rates, perhaps 200 - 300 parts per minute.
Even the best sliding head CNC lathe is going to be orders of magnitude slower.
I’d imagine that a lot of the smaller manufacturers are turning them as a CNC lathe or 2 is far cheaper than a wire fed cold heading machine, plus a of course the flexibility of a CNC.
For serious quantities in the millions, such as Lake City making copper cores for the US Millitary EPR bullets they’re using wire fed cold forming machines as there is very little waste and they can run at high rates, perhaps 200 - 300 parts per minute.
Even the best sliding head CNC lathe is going to be orders of magnitude slower.
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Absolutely. As Smelly has responded, been doing it for a hundred years. Older cattle require thoughtful placement and something a bit bigger would be preferred.
Thanks Miles.
I had no idea that little bullet was up to the job. Always shotgun or Vet's/knackerman's bolt when i grew up on a farm.
Bavarianbrit
Well-Known Member
Glad it got a few folk talking, my experiment is finished.
Scipio
Well-Known Member
if it ever gets slow on here, you can always just do another one
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