I'm currently using 10oz denim I measure thinner than normal, at .020" compressed in my caliper jaws between f
inger and thumb.(wide part of the jaws)
The previous 10 oz. denim I bought measured .0225". The balls are small in diameter, so loading is easy.
My muzzle's crown looks like this. I don't need to use the short starter, but it's quicker to do it that way
rather than choking up on the rod to get the ball and patch started.
My .32's muzzle. The .36 looks the same but I haven't taken it's picture yet. The .36 has much wider grooves.