I was able to finally get the T10 gun on the T28 Proto only to find I'm bouncing off so many tanks. Then I looked at the specs to see that the gun has a pen rating of 248/297/60. From some search I found on here, the minimum a gun needs to pen at the T10 level is around 260 and for Tier 9 around 245... So, if I am shooting gold, then yes, this is definitely a T10 gun but shooting standard ammo that would make this a tier 9 gun.
Does WG classify gun level based upon the GOLD ammo it shoots and not the AP? It seems this may be the case for this tank. There are battles that I have to shoot gold because otherwise it will not pen a thing... specially when I'm that -2 tank... which seems to occur a lot on this tank...
I guess this is more of a PSA (realization) for me and if correct, maybe help others in determining if they are going to grind a gun that they think is a tier or 2 higher..
joe...