My first Lead... CSA maybe

[ArDirtSlinger]

I think this is A .52 Ringtail Sharps variant.. Looking for conformation

the lighting gives it a yellow hue sorry

 

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[dutchtoga]

Yea dude looks like one of those cleaner bullets. Nice

 

[Pointman]

Looks like a Sharps. You would have to get a precise diameter measurement to make sure of the caliber. This would also establish if it could be either CS or US or both.