Found this bullet at an estate sale

[thegatman]

What rifle would this bullet fit?
.40 inch base. Weighs about 237 grains.

 

[Jmac00]

10mm, I think. 40 S&W is basically a 10mm short

 

[Darth]

You could load it in a hot 10MM.

 

[thegatman]

I thought maybe a muzzleloader.

 

[Jmac00]

I thought maybe a muzzleloader.

does anyone make a .40/10mm muzzle loader

 

[thegatman]

It might be too long to load in 10 mm. If your looking for oal of 1.24 for cast.

 

[Jsmegs77]

Looks like a sinker to me. Never heard of a .40 muzzleloader and the dimensions are wrong for a handgun 10mm round. Perhaps a wierd old lever action chambering might have used a similar form factor.

Edit: maybe something like this.... 40-90 Sharps

Mc Pheeters Antique Militaria

 

[thegatman]

I think I will drill a hole in one for a sinker

 

[Robin]

It appears to be a picket bullet and is used in muzzleloaders. It requires a barrel with a faster twist than traditional patched ball barrels, but they were very accurate.
Robin

 

[thegatman]

Robin,
You are right. Found some info on them,