Daryl:

No, I don't. The nose of the bullet I designed for my 400/360 2 1/4" Rimless N.E. (see reference below), can be squoze down into the muzzle, with a wee bit of thumb pressure & when removed, has faint land engraving marks on the nose.

(http://accuratemolds.com/bullet_detail.php?bullet=37-355H-D.png)

The nose of the bullet mikes 0.35655", so a bore or land diameter of 0.356".

I measured each of the 5 lands and they all came out at at 0.004" deep, so 0.356" + 0.004" + 0.004" = 0.364" groove diameter.

Another indication that I believe this barrel is set up for 360 2 1/4" N.E., methinks.