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Old March 21, 2020, 10:56 AM   #1
5pins
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Winchester .45 acp 185gr silvertip jhp in clear ballistics gel.



Test Gun: Colt 1911 Government, Defender.
Barrel length: 5 and 3 inches.
Ammunition: Winchester .45 ACP 185gr Silvertip JHP .
Test media: 10% Clear Ballistics Gel.
Distance: 10 feet.
Chronograph: Caldwell Ballistic Precision Chronograph G2.
Five shot velocity average: 993, 902fps
Gel Temperature 70 degrees.

https://general-cartridge.com/2020/0...allistics-gel/
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Old March 21, 2020, 11:31 AM   #2
jfruser
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Not a fan of the lighter .45ACP loads, but nothing to complain about on this test for the 185gr Silvertip.
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Old March 21, 2020, 11:42 AM   #3
Jim Watson
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Anecdote alert:
Quote:
the jackets were made out of aluminum. I think the idea was that aluminum would allow better expansion than the traditional copper jacket.
Yup, low velocity Silvertips like .380, .38, and .45 were aluminum, 9mm and .357 started out as nickel plated copper alloy.

An aluminum Silvertip could be seen to have a cannelure with a little bit of wax lube.
A shooter here got some with the lube omitted and found that naked aluminum fouls badly. Winchester replaced the ammo but didn't tell him how to clean out aluminum fouling.
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