.416 barrett

[03A4]

I heard someone on calguns would reload .416 barrett brass.

[ar15barrels]

Anyone can for themselves.

If you want them to do it for you, they need to be a licensed ammo manufacturer.
There are a couple here, but I don't think either are tooled for the 416.

Best option is to load your own so you can develop the best load.
You will recover the reloading equipment costs in about 100-200 rounds.

[50 Shooter]

Contact MrKubota from the board, not sure if he has a set of .416 Barrett dies or not but he is licensed to manufacture ammo.

[brando]

You can get .416 Barrett dies from Midway and other sources (I think Lee makes them). Bullets can be obtained from Barrett or you can a slightly different bullet from Lehigh (who ironically make the Barrett bullet exclusively).