This is a discussion on Leatherwood ART II Scope within the Optics forums, part of the Gun Forum category; Gentlemen,
First let me say to all the veterans out there on this Memorial Day weekend. both alive and passed; THANK YOU FOR YOUR SERVICE. ...
I have an opportunity to acquire an original Leatherwood ART II with the steel 2 point, multi-piece mount and immaculate fiberglass case. I have been searching high and low, here and elsewhere for a Technical Manual or some kind of manual for it. For sure, I don't know the number.
The cam and locking ring are loose and will need adjustment and I quite simply don't know what I am doing with this setup and I don't want to mess it up.
I have read a lot of bad opinions of this scope and mount and I am interested in anyones first hand opinions of it. Frankly, I don't know yet if I should pass it up or jump on it due to it's scarcity. We have not settled on a price yet. But I am sure he got it cheap. I will obviously need to find the correct Clip Guide for it too. If it's even available.
So, to all of you guru's out there, If you know the TM number associated with this scope. Or have a copy in PDF form, please let me know.
Contact the late Jim Leatherwood's son to verify a quality service company. I believe he is still running the operation
In the meantime here is a link with tel # for Iron Sight Inc. who claims to be the repair depot for Leatherwood, they may have a source for your clip guide otherwise modify w/drill and tap on a standard version...
work the fix from both directions Leatherwood and Iron Sight:
The replacement for the clip guide allowing attachment of the rear screw was only used on commercial versions of the ART II. The military M21 rifles had the original clip guides drilled and tapped for the rear screw. The screw is a 1/4"x28 tpi and the hole must be countersunk for the bevelled sleeve on the rear screw. The clip guides are a hardened part (very hard) and should be drilled with a 7/32" carbide tipped bit. Using the proper #3 drill bit will not allow enough diameter for the tap in a part this hard.
Thanks for that heads up Ted. I appreciate it. Actually I found that Iron Sight Inc. Has them for $44 shipped. Maybe I'll go that route. I don't think I have any spare Clip Guides. I knew the thread size. I just thought I would probably screw up the location. Although, it looks like I have some wiggle room. Plus I would need the 7/32 carbide bit and probably a spare tap.
I bought an ART II set-up a couple of years ago and wound up making my own tapped clip guide. I used a USGI guide and located the hole center on the guide by installing the clip guide I wanted to use, then mounted the scope and tightened the mount securely to the receiver. Next I turned the mount screw that would screw into the clip guide several times while pushing against it with a fair amount of force until it scored the surface of the clip guide. It left a tiny circle scratched on the side of the clip guide. I removed the clip guide from the rifle and then after finding the center of the small circle, I used a center punch to mark it for drilling the pilot hole. You will need a 1/4-28 bottom tap to tap to a depth of 1/2" and then counter sink the tapped hole to a depth of 1/16" for the bevelled sleeve on the mount. Mine turned out perfect. HTH
I tapped my own clip guide. I put a propane torch on it for 15 minutes to anneal it. Use lots of cutting oil, clean it, and back the tap in and out. Use carbide taps. If it breaks, at least you can use a punch to break it out.
Or send your setup to Ted. I think he offers this service.
I acquired a Leatherwood 3-9 ART (X) scope in the late 1980s. The X indicates it was a FAT (First Article Test) unit and by the time I received it, it didn't have a manual either. I wrote to Leatherwood/HiLux and received a very cordial eMail along with a .pdf manual for the basic scope. I suggest you do the same and I'm sure they will send you the pertinent information at no cost.