I recently purchased a Highway Patrolman with 4" barrel, magna grips, DOB about '78. I realize the frame is a matte finish with "bead blasting on the rounds and top-strap". On my gun, there's a definite difference in the finish between underside and front of gun as compared to the rest. The trigger guard and front of crane (?) have a rougher finish as compared to the rest of the blueing on gun. Is this what they are referring to on the "bead blasting" or do I have something else going on here??
Also, bore rifling seems pretty shallow to me but I'm much more familiar with rifles..subjective question without a picture I know, but how pronounced should the lands and grooves be? Good luck trying to give me an idea on this without a barrel to look at!
I'll get the serial # and a pic when I get courageous enough to figure that process out! I can't say I'm a great fan of technology so I usually avoid it!
Thanks for any and all help.