Tikka T3x .300 Win. Mag. Bolt-Action Rifle – 24.3 in Stainless Heavy Barrel, MDT Oryx Chassis, Muzzle Brake, 5+1
This Tikka T3x in .300 Win. Mag. stands out as a custom chassis build centered on Tikka’s proven two-lug, 70-degree bolt action. It features a 24.3 inch stainless, cold hammer-forged heavy barrel that is free-floated and threaded, with a stainless multi-baffle muzzle brake installed. The rifle is set in an MDT Oryx aluminum chassis with an adjustable cheekpiece and spacer-adjustable length of pull, and comes equipped with a one-piece 1913 Picatinny scope rail and an MDT detachable steel magazine.
Finland-made with CIP proofs and a Beretta U.S.A. import mark, it brings together reputable components and clean execution.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: There are some scuffs and scratches on the chassis. The stainless multi-baffle muzzle brake shows carbon buildup and wear.
What's Included
- Scheels case
- 1x 5-round MDT steel detachable box magazine
- Stainless multi-baffle muzzle brake (installed)
- One-piece 1913 Picatinny scope rail (installed)
- MDT Oryx fixed aluminum chassis with adjustable cheekpiece and spacer-based length of pull (installed)
The MDT Oryx aluminum chassis gives this T3x a rigid, modern foundation with an adjustable cheekpiece and spacer-adjustable length of pull, a vertical pistol grip, and a thick recoil pad. Its long, flat-sided forend with accessory and vent slots supports stable positional shooting. The two-tone OD green and dark gray/black finish provides a clean, functional look.
The 24.3 inch stainless barrel is heavy profile, straight-taper, free-floated, and cold hammer-forged, with a polished exterior. It is threaded and currently fitted with a stainless multi-baffle muzzle brake. The 1:10 twist is well-suited for common .300 Win. Mag. bullet weights.
Tikka’s two-lug bolt with a 70-degree lift cycles smoothly, featuring a polished bolt body and a round knob. The action includes a two-position safety and a single-stage, user-adjustable trigger. Feeding is via a detachable MDT steel box magazine with a stated 5+1 capacity.
A one-piece 1913 Picatinny scope rail is installed for secure optic mounting. This rifle bears CIP proofs with FI 21 coding and a Beretta U.S.A. import mark (Accokeek, MD 20607), reflecting its Finnish manufacture and U.S. import pathway.

