I recently picked up a 39A Mountie with an "L" prefix. This is a great little gun in about 90% shape. I have a few questions that hopefully some of you can help me with. I do know the gun was made in 1954. I have heard/read that Marlin went to Microgroove rifling in 1954. When I called Marlin they told me that if it is a Microgroove it will be stamped on the barrel which mine is not. I also heard/read that if it is a Ballard rifled Barrel that about 200 were made in 1954 before the switch to Microgroove barrels. So I would like some thoughts and input on this particular Mountie and also about Ballard vs. Microgroove barrels concerning accuracy and value to this gun. Thanks!