A few months ago I found some of the TBBC bullets sold as pulls and remember DocGKR saying they were awesome so I bought 2K of them. Theres some odd bullets mixed in that I don't know what they are. The ones marked with a T on the bottom and have a full jacket which weighs 62gr are the TBBC obviously but I don't know what the other is with the exposed lead base weighing 60gr. A quick search shows that Federal has a 223 load of nosler partitions that are 60gr in weight and look like they could be it but the actual picture of the bullet doesn't show a cannelure. Ive never loaded the 60gr nosler partitions so I don't know what they truly look like. Just trying to get an idea of what they really are as theres a decent amount of them mixed in so I might have enough to actually use for a hunting load.

Interesting... Nosler does sell Partitions with cannelures ... just not typically to the public.

I have found some pretty weird ones in my TBBC pulls.  I think they are Federal rejects and not from another brand.
It looks to me like it was a TBBC and the core did not get all the way into the jacket with some extra squeezing out on top and jacket getting cut off the bottom.
I had a couple of 44gr FMJ looking ones with the T on the bottom in my stash.

I had purchased some winchester .223 varmint rounds during the panic because that is literally all there was to be bought. That was a sad time. Now I got XM193 and M855 for days. Anyways, the rounds I was referring to looked EXACTLY like the non t marked bullet. only I think they were 45 and 55 grain

I vote cut one in half as well.