Ahh...you must be using TDs a lot then.
I mostly love playing my heavies. So that's mostly the reason for my choosing high pen guns.
Accuracy is awesome for TDs. Most accurate gun I've used so far is the Jagdtiger's 12.8cm PaK 44/2 L/61. Accurate to the dot.
When it goes to JgPzE100.....screw that shit. Pretty accurate, but bullshit penetration. Though now it's better than before.
800 m/s to 925 m/s. Though still, if I shoot the side of a BatChat, the front of an M12, or just anything that is usually easy to penetrate even with a little angle with my AC Mle 46, and they're usually only tracked or bounced, that's absolutely bullshit.
And I've never encountered that with my JagdTiger. lol