Good idea. I would check with the armory, except that I'm in the Reserves. I don't know who the armory POC is. But I'll find out.
I do have a copy of the Official Instruction. But the problem is finding multiple targets labeled B21 and they are different sizes.
The new manual is OPNAVINST 3591.1D. It states:
"The B-21 Target is available from various commercial
sources. The B-21 Target used in Navy pistol qualification
courses is the full-sized B-21 Target."
So I guess that means the 35" x 45" target.
I really wanted to practice the exact course. I know we'll get a chance to do it again this spring and I'd like to move up from marksman. I scored that about 15 years ago.