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McMillan TAC-338

Sniper Rifle [ 2005 ]

The McMillan TAC-338 system is a highly-specialized version of the TAC-300 rifle line.

Authored By: Staff Writer | Last Edited: 02/26/2018 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site.

The McMillan TAC-338 is a specialized sniper rifle developed to exacting specifications with long range lethality and precision in mind. The weapon is part of the McMillan family of TAC-300 series rifles that includes the base TAC-300, the TAC-308, the TAC-338 and the newer TAC-416 (.416 Barrett). The series has since become a proven battlefield commodity and has seen operational use by various military forces including the world-renowned United States Navy SEALs. The TAC-50 is an offshoot of the TAC line and is chambered for the uber-powerful .50 BMG cartridge as a long range anti-personnel/anti-material rifle platform. However, for precision anti-personnel service through a more compact offering, the adaptable McMillan TAC-338 is the weapon of choice.

The TAC-338 is chambered for either the .338 Lapua Magnum or .338 Norma Magnum cartridges and sports a heavy-duty, stainless steel matte-finished/match grade, free-floating hand-fitted barrel of 26.5-inch length. The barrel is finished in Dura-Coat with NP3 Electroless Nickel coating which prevents corrosion. A perforated muzzle brake is fitted over the business end of the barrel as standard though a threaded cap is available as an option. The free-floating stock features an integrated grip handle and sports an adjustable cheekpiece for comfort during long observation sorties. The TAC-338 is available in two distinct marketed forms - the TAC-338A with its conventional detachable box magazine feed and the TAC-338B with its hinged floorplate for easier unloading. Mounting positions over the receiver allow for a rail assembly to be added and, therefore, support various optics in turn. An optional adjustable bipod can be fitted at the extreme forward portion of the forend to lend additional support to the rifle station and preserve the shooter's compact prone position. An optional sling can be affixed for ease-of-transport when use of the hard or soft carrying case is prohibited. The oblong trigger ring is perfectly sized with the gloved hand in mind and the large magazine release is easily accessible from the firing hand's position. The TAC-338 ships with a trigger pull of 3lbs but is adjustable between 2.5 and 4.5lbs and fired from a 5-round magazine. The system is manually-actuated through a bolt lever fitted over the right side of the receiver. Spent shell casings are ejected to this side upon management of the lever.©MilitaryFactory.com
The base TAC-338 ships with a Leupold Mk 4 3-10x40mm M1 Mil Dot scope in a 1750 series Pelican case. The bipod is a Harris HEBR Swivel Bipod adjustable between 6" and 9". The shoulder strap is a synthetic leather. A Night Force 8-32x56mm Mil Dot scope is optional as an upgrade through McMillan as is a McCann Night Vision Rail Mount and Jewell Trigger system. Additional accessories include the Elite Iron series suppressor which does not "silence" the weapon but retards some of its audible exit signature.©MilitaryFactory.com
Note: The above text is EXCLUSIVE to the site www.MilitaryFactory.com. It is the product of many hours of research and work made possible with the help of contributors, veterans, insiders, and topic specialists. If you happen upon this text anywhere else on the internet or in print, please let us know at MilitaryFactory AT gmail DOT com so that we may take appropriate action against the offender / offending site and continue to protect this original work.


Service Year

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United States


Sniper Rifle

McMillan Tactical Products LLC - USA
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(OPERATORS list includes past, present, and future operators when applicable)
Accuracy / Precision
Long-range accuracy / precision capable; suitable for sniping, particularly when equipped with sighting aids.
Special Forces
Qualities of this weapon have shown its value to Special Forces elements requiring a versatile, reliable solution for the rigors of special assignments.

Overall Length
1,220 mm
48.03 in
Barrel Length
685 mm
26.97 in
Empty Wgt
11.02 lb
5.00 kg

Various Optics


Manually-Actuated Bolt-Action

Manually-actuated process of managing the bolt lever to eject spent cartridge case, clearing the breech, to introduce fresh catridge into the chamber.
(Material presented above is for historical and entertainment value and should not be construed as usable for hardware restoration, maintenance, or general operation - always consult official manufacturer sources for such information)


.338 Lapua Magnum; .338 Norma Magnum

Sample Visuals**

Graphical image of a .338 rifle cartridge
Rounds / Feed

5-round magazine
Cartridge relative size chart
*May not represent an exhuastive list; calibers are model-specific dependent, always consult official manufacturer sources.
**Graphics not to actual size; not all cartridges may be represented visually; graphics intended for general reference only.

TAC-338 - Base Series Designation
TAC-338A - Detachable box magazine
TAC-338B - Hinged Floorplate

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Images Gallery

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Image of the McMillan TAC-338
Image copyright McMillan official marketing material


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