Ruger American 300 HAM’R® Match Barrel Conversion kit
To satisfy the demand for a 300 HAM’R® bolt action rifle we developed this easy caliber conversion kit for owners of the Ruger American rifle chambered in .223/300 BLK.
These match-grade stainless steel barrels are precision button-rifled, fully pre-chambered, and finished in matte black Armor-Tuff.
The 300 HAM’R®
The 300 HAM’R® was developed with one thing in mind, OPTIMAL TERMINAL PERFORMANCE. It offers near .308 Winchester effectiveness on game animals with amazing accuracy and low recoil in the lightweight and compact WC15 platform.
Terminal performance testing on over 2000 Texas feral hogs and various game animals as large as 800 pounds has proven it to kill much more effectively than the 6.5 Grendel, 6.8 SPC, 7.62×39, or 300 Blackout. Due to the optimization of bullet weight to barrel twist, accuracy has proven to be outstanding. Sub one-inch groups are the norm with multiple bullet choices for varying applications such as hunting, target shooting, and tactical use.
Undoubtedly the 300 HAM’R® will be compared to the popular 300 BLACKOUT or 7.62×39 and as the comparison charts below indicate, the ballistics of the 300 HAM’R far exceeds the 300 BLACKOUT and 7.62×39 in both velocity and energy when utilizing 95-150gr bullets.
*Installation should be performed by a gunsmith who is adept at removing Ruger rifle barrels. A barrel vise will be required to remove the original factory barrel/nut.
With the original factory barrel/nut removed, thread the new barrel in place until there is a slight drag fit against the supplied Go-Gauge when closing the bolt handle. Once you have a light drag fit on the Go-Gauge, proper headspace will be set. A bolt that is hard to close on the Go-Gauge will indicate too-tight headspace. A bolt that closes very easily indicates excessive headspace.
Once proper headspace is set, install the supplied barrel nut on a lightly greased barrel shank using the supplied barrel nut attachment tool on a torque wrench. Tighten barrel nut to 50 ft-lbs of torque.