brudford,
I know you said .38 Special, but, what is your "actual" bore dia. on this revolver?
.375 would put it at the actual size of the original "heel base" cartridge bullet design.
.357 would place it within the modern .38 Special dia. bullet.
Both are very important if you wish to maintain reasonable accuracy beyond 10 or 12 feet to the target.
Just a thought on my part.
My best,
Blair