Sako TRG

Sako TRG-22/42 sniper rifles were developed by the Finnish firearm manufacturer SAKO of Riihimäki. The TRG-22 is designed to fire standard .308 Winchester ammunition, while the TRG-42 is designed to fire more powerful .300 Winchester Magnum and .338 Lapua Magnum ammunition and therefore has a larger action and barrel as standard. The rifles are available with olive drab green, desert tan/coyote brown, dark earth or black stocks, and are also available with a folding stock.

Normally muzzle brakes are fitted to reduce recoil, jump and flash. The Sako factory TRG muzzle brakes vent sideways and are detachable. Generally TRGs are outfitted with a Zeiss or Schmidt & Bender PM IItelescopic sight with fixed power of magnification or with variable magnification. Variable telescopic sights can be used if the operator wants more flexibility to shoot at varying ranges, or when a wide field of view is required.

History

In 1989 Sako Ltd. (Riihimäki, Finland) introduced the TRG-21 precision rifle as a sniper rifle model chambered for the .308 Winchester cartridge. A more hunting oriented variation of the TRG was later introduced as the TRG-S M995, which uses the same receiver (short action) and bolt (different bolt handle) as the TRG-21 with the exception that the receiver is open at the top rather than possessing a cartridge ejection port on the right side as found with the TRG-21. Subsequently, a second sniper rifle with a 20 mm longer scaled up magnum action emerged as the TRG-41 in order to take advantage of the .338 Lapua Magnum cartridge. Similarly, a hunting variant of this model, again using the same bolt (different bolt handle) and with the receiver open at the top was introduced as the TRG-S M995 Mag in magnum calibres up to .338 Lapua Magnum.

Sako

Sako or SAKO may refer to:

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SAKO

SAKO, Limited (Suojeluskuntain Ase- ja Konepaja Oy, Civil Guard Gun- and Machiningworks Ltd) is a Finnish firearm manufacturer located in Riihimäki. It is now owned by the Italian firearms holding company Beretta Holding.

Origins

In 1919, a year after Finland declared independence from the Russian Empire, the Suojeluskuntain Yliesikunnan Asepaja (Civil Guard Supreme Staff Gun Works) opened in a former Helsinki brewery to repair private arms and recondition Russian military rifles for Finnish service. The rifle repair shop became financially independent of the civil guard in 1921. The Suojeluskuntain Yliesikunnan Asepaja moved from Helsinki to an ammunition factory in Riihimäki on 1 June 1927 and reorganized as SAKO in the 1930s. Sako started exporting pistol cartridges to Sweden in the 1930s and continued manufacturing submachinegun cartridges through World War II. The firearms manufacturer Tikkakoski, which owned the Tikka brand, was merged into SAKO in 1983. The Valtion Kivääritehdas (VKT) opened at Tourula, Jyväskylä in 1925 had become a part of Valmet in the 1950s and in 1987, the state-owned Valmet and SAKO fused into SAKO-VALMET, with ownership split evenly between Nokia and Valmet. After several organizational shifts in state ownership, the SAKO name remained for the privately owned gun- and cartridge-producing company located in the cities of Riihimäki and Jyväskylä (former Valmet factory in Tourula, which was later closed). The company now is owned by Beretta Holdings.

SAKO (programming language)

SAKO (PL: System Automatycznego Kodowania Operacji - EN: Automatic Operation Encoding System) is a non-English-based programming language written for Polish computers XYZ, ZAM-2, ZAM-21 and ZAM-41.

Hello world

References

TRG@

T-cell receptor gamma chain C region PT-gamma-1/2 is a protein that in humans is encoded by the TRG@ gene.

T cell receptors recognize foreign antigens which have been processed as small peptides and bound to major histocompatibility complex (MHC) molecules at the surface of antigen presenting cells (APC). Each T cell receptor is a dimer consisting of one alpha and one beta chain or one delta and one gamma chain. In a single cell, the T cell receptor loci are rearranged and expressed in the order delta, gamma, beta, and alpha. If both delta and gamma rearrangements produce functional chains, the cell expresses delta and gamma. If not, the cell proceeds to rearrange the beta and alpha loci. This region represents the germline organization of the T cell receptor gamma locus. The gamma locus includes V (variable), J (joining), and C (constant) segments. During T cell development, the gamma chain is synthesized by a recombination event at the DNA level joining a V segment with a J segment; the C segment is later joined by splicing at the RNA level. Recombination of many different V segments with several J segments provides a wide range of antigen recognition. Additional diversity is attained by junctional diversity, resulting from the random addition of nucleotides by terminal deoxynucleotidyltransferase. Several V segments of the gamma locus are known to be incapable of encoding a protein and are considered pseudogenes. Somatic rearrangement of the gamma locus has been observed in T cells derived from patients with T cell leukemia and ataxia telangiectasia.

TRG

TRG may refer to: