It looks like it might be the 460 grain PowerPunch bullet that Doc White makes.
Go to Whitemuzzleloading.com and click on "Bullets" to see a picture.
The lube is the right color, too, but it looks like it might have one more grease groove than Doc's.
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Thanks, Dad, for taking time with me.
I know this is a big time shot in the dark but does anyone recognize this bullet. I was given 3 with my used White rifle in 451.
It looks to me like a .451" cal. "Volunteer Rifle" bullet, similar to the Whitworth, but with a round bore instead of a hexagonal bore...... Must weigh close to 500 grains.....
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"Bitte, trinks du das Wasser nicht. Dahin haben die Kuhen gesheissen."