About Recoil Lugs:
Posted by Chad Dixon on
Taking the time to write up a product description should have been a short and sweet ordeal. Instead it turned into several paragraphs aimed at informing the reader why LRI feels the need to make "yet another part that is the same as everyone else..." -If only it were that simple!
The "me too" crowd is something We've never felt the need to subscribe to. I began manufacturing this product (over five years ago now) with the intention of solving the challenges we were confronted with during the course of our full builds. It's not until now that we have an online store that ever occurred to me that others might be interested in purchasing these items for work done elsewhere.
So lays the foundation for our recoil lugs used on the M700 and Tikka actions.
As with most of our products, they are fostered from the need to solve a genuine problem. Our M700 type lugs are offered in two configurations. The heavy tactical lug addresses the need to distribute recoil generated from a heavy magnum across the broadest footprint possible. With the trend of moving towards lighter rifles becoming more and more popular, stock makers are using lower density filler materials. Being able to spread recoil over a larger area lowers the risk of stocks developing cracks in the core structure.
The M700 Profile Heavy Tactical lug was made to answer the needs of shooters desiring a heavier lug profile that is still capable of dropping into today's popular chassis type rifle stocks. The Heavy and M700 profile lugs share many of the same fundamental features, however this lug is narrower in width across the lower portion so that it will fit without additional machine work to the stock.
All of our recoil lugs address the need to be gentle with bedding work. While very strong, epoxies are still very susceptible to abrasion and chipping damage. We minimize this risk by designing our lugs with generous corner fillets and a machined edge on all sides of the part. Additional features include a chamfer on the internal bore where the barrel passes through. This "edge break" is large enough so that when using a 1/64" radius turning tool on the lathe to fit a barrel, the fillet created by the tool can remain, thus creating a stronger joint than an undercut, aka "virtual" corner.
Our lugs are made from chromoly steel in the annealed condition. This offers a great balance between hardness and toughness. Chromoly is an extremely stable material and very resistant to smear and galling when pulling a barrel up tight. We install dowel pin holes (2) in the lug body so that they can pinned to the receiver. For bedded rifles this is a real benefit as it guarantees that the lug will index to the same location after a barrel change. This feature is important so that the action is never misaligned in the rifle stock. Combined with the 2* draft angle on the sides of the lug, the barreled action will separate from the stock with much less effort than other designs during disassembly.
Last, the bore of the lug is enlarged to 1.09". This way a 1.0625" diameter barrel tennon never makes contact with it. The only loading applied is front and aft. Doing so in combination with the precision ground surfaces ensures the lug is completely "static" when pulled up tight between the barrel shoulder and receiver face.
These solutions are all very subtle, but ones that any marquee level gunsmith has faced when building and stocking rifles.
We've proven time and time again that the Tikka action is an underdog holding enormous potential for reliable, rugged, and exceptionally accurate rifles. Updating to our recoil lug for the Tikka requires radical and invasive machine work to the receiver's front ring. This alteration stems from client requests to fit a Tikka barreled action into wood and composite rifle stocks not originally designed for this receiver.
We chose this recoil lug design over the factory version because it has a long history of success in other actions. When combined with our highly admired stocking services, ranked as the absolute best available today by top level shooters, you are rewarded with a rock solid foundation capable of delivering predictable performance in almost any circumstance.
-Note: This lug is not a drop in fit. It requires invasive machine work to the front ring on the action. This type of work should only be performed by a qualified machinist/gunsmith fluent and comfortable with machining heat treated steels. LRI is happy to perform this service for you.
This process is a bell that cannot be unrung. A barreled action modified this way will no longer fit into a factory Tikka stock without additional and extensive modification.
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