Action Features

Aluminum Competition Actions (Viper, Rattler, Cobra and Python)

  • All actions come with rings included in price.

  • All actions use an aluminum main body with 416R stainless steel barrel insert hardened to 41 Rockwell C.

  • Available in left or right bolt, left or right port.  All CNC machined.

  • Firing pin design helps eliminate primer piercing by the high pressure loads used by today's top shooters.

  • All aluminum parts are hard anodized for wear and smooth action.  Black and the natural dark gray colors are available.

  • Black Iron Nitride QPQ style coating coating on bolt for smooth action and galling prevention.  

  • Factory-lapped 2 lug bolt with 30 degree coned front with M16 style extractor used on non Drop Port models.  Drop Port models use the Remington style nose.  Made of 4140 steel hardened to 40 Rockwell C.

  • Universal face diameter fits PPC and 308/BR on standard action.  Spiral-fluted to reduce weight.

  • Chamfered port for easy cartridge insertion and removal.

  • Designed to fit Jewell trigger on hanger; any Remington style will fit.

  • All actions except the Python use 1.0625-18 tpi, 1.115 inch headspace.  The Python uses a 1.1875-18 tpi, 1.375 headspace and requires a barrel diameter of 1.25 min.

  • Integral dovetail scope mount, rings included.  Compatible with any Davidson style ring such as ours or Kelby rings.

  • Ergonomic bolt handle and wear pin installed in action are made of 17-4 ph stainless steel hardened to 40 Rockwell C

Stainless Competition Actions (Diamondback, D'back and Viper SS)

  • All actions use 416R or 17-4 ph stainless steel hardened to 41 Rockwell C.

  • Available in left or right bolt, left or right port.  All CNC machined.

  • Bolt hole is gundrilled and then wire edm'ed with the rails to ensure exact tolerances and size control.  

  • Firing pin design helps eliminate primer piercing by the high pressure loads used by today's top shooters.

  • Standard finish is satin brushed outside with matte internal surfaces.

  • Black Iron Nitride QPQ style coating coating on bolt for smooth action and galling prevention.

  • Factory-lapped 2 lug bolt with 30 degree coned front with M16 style extractor used on non Drop Port models.  Drop Port models use the Remington style nose.  Made of 4140 steel hardened to 40 Rockwell C.

  • Universal face diameter fits PPC and 308/BR on standard action.  Spiral-fluted to reduce weight.

  • Chamfered port for easy cartridge insertion and removal.

  • Designed to fit Jewell trigger on hanger; any Remington style will fit.

  • All actions use 1.0625-18 tpi, 1.115 inch headspace.

  • Davidson mounts or Picatinney rail is available in standard and 20 moa offset.

  • Viper SS has built in Picatinney rail with 20 moa offset and built in recoil lug.

  • Ergonomic bolt handle and wear pin installed in action are made of 17-4 ph stainless steel hardened to 40 Rockwell C.

Stainless Rimfire Actions (2500X, Copperhead, Trident)

  • All actions use 416R stainless steel hardened to 41 Rockwell C.

  • Available in right bolt, left or right port.  All CNC machined.

  • Bolt hole is gundrilled and then pull reamed with a bore reamer to ensure exact tolerances and size control.  

  • Firing pin design is optimized for minimal friction, perfect alignment and consistent ignition.

  • Standard finish is ground outside with Black Iron Nitride QPQ style coated internal surfaces.

  • Black Iron Nitride QPQ style coating on all bolt parts and ignition system for smooth action and galling prevention.

  • Factory-lapped 2 or 3 lug bolt.

  • Chamfered port for easy cartridge insertion and removal.

  • Designed to fit Jewell and BixNAndy trigger on hanger; any Remington style will fit.

  • 2500X, XS and Trident actions use 0.750-16 tpi, 1.050 inch headspace.  2500XR  has both 0.750-16 tpi and 1.0625-16 tpi and 2.050 headspace.

  • Davidson mounts or Picatinney rail is available in various offsets.

  • Ergonomic bolt handle with threaded knobs for easy replacement.

Stainless Hunting Actions (Predator series)

  • Drop in replacement for popular Remington 700 and 40X series actions.  Fits same stocks, triggers and has same nominal headspacing.

  • Available in short and long length, single shot or repeater and 223, 308 and magnum boltfaces.  The PredXtreme is specifically designed for the 338 Lapua Magnum or 378 Weatherby based cartridges.  It has a little larger footprint, the diameter is 0.050 larger and the length is 0.465 longer to accomodate the larger boltface.

  • All action bodies use 416R stainless steel hardened to 41 Rockwell C.

  • Black Iron Nitride QPQ style coating on bolt for smooth action and galling prevention.  Bolt is also factory lapped.  Bolts are spiral fluted.

  • Bolt hole is gun-drilled and then wire edm'ed with the rails to ensure exact tolerances and size control.  Bolt fit to body is typically .0040 to .0060.

  • Rails incorporate anti-bind rail for smooth operation when sliding bolt across port cutout.

  • Repeaters have extended magazine cutout for use with HS Precision or Wyatt Outdoors extended magazines as well as factory Remington.

  • Davidson dovetail or picatinney rails are available from SPF.  Standard front Remington bases fit both front and rear mounts.

  • Standard finish is bead blasted matte.

  • Bolt stop is on side above the stock line.

  • Full round back and smaller port allow for a much stiffer action and perfect scope alignment.

  • Uses industry standard Remington style firing pin with 0.068 diameter.

  • All actions use 1.0625-16 tpi, 0.700 inch headspace.

  • NOW Available in right bolt right port AND left bolt left port.  

  • All CNC machined.

Predator is a registered trademark of  Stiller's Precision Firearms, LLC

Stainless Tactical Actions

  • Drop in replacement for popular Remington 700 series actions.  Fits same stocks, triggers and has same nominal headspacing.

  • Available in short, long and 338 Lapua length. Tactical 30 actions have 223 and 308 and magnum boltfaces, Tactical 300 actions have 308 or magnum boltfaces.  The Tactical 338 is specifically designed for the 338 Lapua Magnum or 378 Weatherby based cartridges.  It has a little larger footprint, the diameter is 0.050 larger and the length is 0.465 longer to accommodate the larger boltface.  The Tactical 408 is designed to be used for cartridges based on the 408 CheyTac brass.

  • All action bodies use 416R stainless steel hardened to 41 Rockwell C.

  • Bolt hole is gun-drilled and then wire edm'ed with the rails to ensure exact tolerances and size control.  Bolt fit to body is typically .0040 to .0060.

  • Rails incorporate anti-bind rail for smooth operation when sliding bolt across port cutouts.

  • Bolt is factory lapped and either coated with Black Iron Nitride QPQ to reduce visibility.  Bolts are spiral fluted.

  • Repeaters have standard magazine cutout for use with Remington parts or we offer a bedding system that uses proven Accuracy International magazines.

  • Picatinney rails are available from SPF.  Standard front Remington bases fit both front and rear mounts.

  • Standard finish is bead blasted matte with a black oxide coating.

  • Bolt stop is on side above the stock line.

  • Full round back and smaller port allow for a much stiffer action.

  • Uses industry standard Remington style firing pin with 0.068 diameter.

  • The Tactical 30 and Tactical 300 actions use 1.0625-16 tpi, 0.700 inch headspace.

  • Tactical 338 actions use 1.125-16 tpi, 1.000 inch headspace.

  • Tactical 408 actions use 1.187-16 tpi, 1.100 inch headspace.

  • NOW Available in right bolt right port AND left bolt left port.  

  • All CNC machined.

This page was last updated on 06/17/15 .