Does anyone recognize this ammo?

It's Winchester .45 Colt. Appears to be factory ammo - I can see no signs that it's a reload.

Brass cases and JHP bullets.

I have about 150 rounds which came to me in plastic boxes with no labels.

One round weighs .8 oz.

Don't know how old it is.

I shot some and it's pretty potent.

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Lorin

Looks like Winchester's 225 grain Defender. It has the notched jacket. 850 fps