Stiller TAC 338 Long Action-Magnum

Description

The TAC338 is specifically designed for cartridges 3.985 length with a .585″ rim diameter such as the .416 Rigby, the 338 Lapua Magnum or  the 378 Weatherby based cartridges. The TAC338 is also larger than the standard TAC action. It is 0.050 larger in diameter at 1.400″and 0.465 longer. That is needed to accommodate the 0.750 diameter bolt that is necessary for these cartridges. The TAC338 actions have no feed lips and use only center feed Wyatt box magazines. Bottom metal with magazines are available from many sources. The TAC338 actions use a straight bolt handle. All tactical actions feature a screw-on bolt knob. Receiver can be ordered with a dual pinned 8×40 screwed, 20 MOA Picatinny Rail – *or add the optional 40 MOA Picatinny Rail, both available in our products tab for purchase. The bolts have a new proprietary coating that makes them as smooth as glass.

• Receiver Material: 416 Stainless hardened to 42 Rockwell
• Receiver Length:
  • TAC30 and Predator Short – 7.850”
  • Wraith Short (integral lug) – 8.037”
  • Predator Medium – 8.200”
  • TAC30 and Predator Long – 8.700”
  • Wraith Long (integral lug) – 8.887
  • P1000 short – 8.265
  • P1000 V long – 9.155”
  • TAC338 – 9.165”
  • Tac DRIVER – 10.25”
• Receiver Diameter:
  • Predator, Predator V, TAC30, & TAC300 – 1.35” (Remington 700)
  • Wraith – 1.35”, across flats
  • P1000 – 1.35” or 1.55”
  • TAC338 – 1.40”
  • TAC DRIVER – 1.45” or 1.60”
• Headspace:
  • Short, Medium, Long, Wraith – .700”
  • P1000 – 1.115”
  • TAC338 – 1.000”
  • TAC DRIVER – 1.100”
  • Headspace tolerance is held to +/- .001”
• Tenon threads Threads are made with a single point boring bar and indexed to top center of action.  This allows any barrel ever fitted to a Stiller Action to be screwed onto any other Stiller Action without need for re-headspacing or re-indexing.
• Bolt Design:
  • TAC30, TAC300, PREDATOR, WRAITH – .700” diameter
  • TAC338, TAC DRIVER – .750” diameter
  • One piece fluted on top and sides but not the bottom so that flutes will not interfere with magazine lips. TAC actions have straight bolt handle and PREDATOR actions have swept bolt handle.  Bolt knob is threaded.  TAC actions have large knob and PREDATOR actions have small knob.  Aftermarket knobs can be swapped out by user or gunsmith.
• Bolt Stop: On side of 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.