Anyone know which bullet this is?

[baldwin1968]

I have a bunch of these that I bought years ago, but no clue what they actually are!
If anyone can identify these, I'd sure appreciate it!
They're 180 grain .308 diameter.

 

[TaperPin]

The exposed lead in the base looks like a Nosler Partition - googling pt 1330 also shows other folks selling Partitions with that part number.

 

[HGL]

They look like a 180 grain nosler partition at first glance.

 

[tt_johnsclist]

Base looks like partition, and PT is in the part number