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22" TAC 6 (6x6.8) 3R x 8 twist
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TAC 6 (240 Valkyrie improved) this is what the 224 Valkyrie should have been.

I designed this for guys who like using the 6.8 brass, this version allows using 105s at mag length unlike the 6-6.8, 6pdk and 6mm Hagar.  It may not be quite as fast (25-50fps)as the 6mm Predator but should be more reliable with stronger bolts and brass and it should feed better than the Grendel cases.  This was my idea of a perfect tactical cartridge 0-600yds with ease.  It is capable of shooting super light bullets at small varmints, 75gr bullets at yotes, 95-108gr long range target bullets and 80-90gr hunting bullets at deer and hogs.  The Tac 6 with 105gr Bergers will hit around 2800fps out of an 22"barrel. The TAC 6 will beat the ballistics of the 224 Valkyrie or 6.5 Grendel.  Hornady custom dies are available as an option below this description and needed to form the brass.   

  • Chamber: TAC 6 -based on the 6.8 case. Requires trimming the brass to 1.570. You do not need to fire form.
  • Bolt: use standard 6.8 bolt
  • Profile:  SPR-.850/.750/.718
  • Fluted: NO
  • Barrel Length: 22"
  • Twist Rate: 1:8- Hybrid 3R rifling(similar to 5R but 3 lands and grooves for higher performance)
  • Gas System: Rifle
  • Diameter at Gas Port: .750" Note - Boss is short for use with 1" long gas blocks.
  • Muzle Thread Pitch: 5/8x24
  • Material: 4150 Chrome Moly Vanadium Steel
  • Finish: Melonite
  • Process: Button Rifled
  • Barrel Lining: Melonite
  • Barrel Extension: M4
  • Assembly: Stripped
  • Weight: 3lb 
gas tube:
Custom Hornady dies:
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    (ARP) AR15 Performance LLC

    Key West, FL 33040

    Hi performance 5.56 & 6.8 SPC barrels and parts since 2007

    The best way to contact is by email

    Phone: 801-750-4216  8am-5pm eastern time  M- Fri only
    Sorry we do not export anything and do not have a storefront. Everything must be purchased online.

    6.8 SPC II, 5.56, 223 wylde, 6.5 Grendel, 224 Valkyrie, 270-08, 30 Herrett, TAC 6, 224 Predator, 6mm Predator,  224 Grendel, 6mm Grendel

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