Ben Cartwright SASS
New member
This may be a dumb question but how do I tell the number of grooves in a 1903A3 barrel? it is marked RA a bomb and 4-43
Looking down the barrel it looks like 6 grooves but I have always heard they were 2 or 4.
I assume it is just try to count the grooves or the lands?
Looking down the barrel it looks like 6 grooves but I have always heard they were 2 or 4.
I assume it is just try to count the grooves or the lands?