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View Full Version : lead tin alloy



white eagle
08-09-2012, 10:21 PM
so lets say we make our favorite hunting hp boolit using a lead /tin alloy of say 16/1 or 20/1 for our favorite pistola.Now lets expand that to include our favorite pistola cartridge in a rifle platform.Our alloy worked famously at our pistol velocities but how will it act when you bump it up to rifle velocity?????:holysheep
anyone had such trials?

runfiverun
08-10-2012, 01:06 AM
Iv'e used 20-1 to shoot a deer in my 45 colt levergun at about 1500 fps, there was no boolit recovery,and the internal damage seemed "normal".
not much to go on there...

rintinglen
08-10-2012, 05:54 AM
Higher velocity means greater expansion until the strength of the metal is exceeded and the boolit fragments. I tried experimenting with the Hornady and Speer hollow points in 357 magnums years back. They would fragment (and line the bore with lead) when loaded with 15.7 grains of H-110 out of my Rossi Carbine when fired in water jugs. They also leaded excessively but expanded nicely out of my S&W M-66. They worked fine though, at 38 +p velocities. I used them as an FBI Load equivalent practice load.

Wayne Smith
08-10-2012, 07:53 AM
20/1 (Remington) and 16/1 (Sharps) killed the buffalo (bison). Any more questions?

Larry Gibson
08-10-2012, 08:01 AM
I use 16-1 alloy upwards of 1600+ fps in handgun and rifle with excellent accuracy and expansion. Most of my HP cast bullets for magnum handgun cartridges are GC'd. I push them to 1400+ fps in 6"+ barreled revolvers and the 1600+ fps in rifles and Contenders. I also use the 16-1 alloy for my .50 cal MaxiBall at 1570 fps out of my MLer.

Larry Gibson

white eagle
08-10-2012, 08:26 AM
20/1 (Remington) and 16/1 (Sharps) killed the buffalo (bison). Any more questions?
yeah what does it mean ???

montana_charlie
08-10-2012, 12:10 PM
... reconsidered ...

ShooterAZ
08-10-2012, 12:46 PM
I recently had an interesting thing happen with 1/20 alloy in 44Mag. 18.5 grains of 2400 shot perfectly well with no leading, 8.5 grains of Unique with the same boolits and same guns were leading a little in the first 1/2" of barrel. It was explained to me as the "pressure curve" with the different powders. The Unique load was "skidding". I would have thought the hotter load would be the one leading...not so.

runfiverun
08-10-2012, 06:13 PM
it's because the boolit wasn't there when the 2400 hit it's peak pressure.