Receiver Material: 416 Stainless hardened to 42 Rockwell
Receiver Length: 9.155”
Receiver Diameter: 1.35” (Remington 700)
Headspace: Short, Medium, Long, Wraith – 1.100” Headspace tolerance is held to +/- .001”
Tenon threads: Threads are made with a single-point boring bar and indexed to the top center of the action. This allows any barrel ever fitted to a Stiller Action to be screwed onto any other Stiller Action without any need for re-headspacing or re-indexing.
Bolt Design: .700” diameter. One piece fluted on top and sides but not the bottom so that flutes will not interfere with magazine lips. TAC 30, TAC 300, and PREDATOR actions have a slightly swept bolt handle. TAC and PREDATOR actions have a large knob with 5/16 x 24 thread. Aftermarket knobs can be swapped out by user or gunsmith.
Bolt Stop: On side of the receiver opposite bolt handle above the stock line
Bolt Throw: 90 degree
Bolt Material: Chrome Molly hardened to 42 Rockwell
Bolt Coating: Proprietary double layer coating makes them as smooth as glass
Firing Pin: Fluted Stainless Steel, .068 diameter tip, Chrome silicon spring
Extractor/Ejector: Modified M16 type extractor, Rem 700 style pin ejector
Recoil Lug: 416R Stainless parallel sided or tapered. .187” (Rem700 standard) or .300” produced in house and surface ground to .0002” tolerance.