Barnes Spitfire TMZ - where?

Hello all. Does anyone know where I can get some 250grain Barnes solid copper T-MZ bullets for my .50 cal TC Impact?

https://i.imgur.com/UeTnLqD.jpg

I have been using these for a few years and absolutely love the performance I get from them.

https://i.imgur.com/0k82fI8.jpg

I can NOT find them anywhere...even in the US. I have shot three deer at or slightly over 200yds with them and I am very confident using them. I got this guy a couple weeks ago and really want to find more.
https://i.imgur.com/MOarqNU.jpg

On another note, if anyone has a disc rifle and need those inserts, let me know. I have a bunch but I have no use for them.
Also, I have a bunch of Powerbelt Platinum bullets that I have never used...Any thoughts on them?
https://i.imgur.com/fg2j2kE.jpg

It's been a while but I have seen them in Cabelas in Ottawa
as for the Powerbelts I've seen quite a few deer shot with them but in all honesty the bullet performance has been poor at best (talking about after making contact with the deer) they obviously flew well out of the rifle but there was zero expansion from the bullet. this was all with break action standard 209 muzzleloaders nothing fancy where the bullet would be traveling faster than 2400fps

PM sent -while not exactly what you want-maybe give it a thought.......
Nice deer BTW.........congratulation

Thanks. You guys have been a real help.

If anyone wants the discs, pick up or pay shipping…free.

Very nice deer dilly.

Got my pack of 24 bullets today via purolator. Thanks everyone especially sharps4570 who put me on to “Canada’s gun store”. They had some.