STF/12: AN EXTREMELY PRECISE WEAPON

The STF/12 is to date the rifle offering the best shooting accuracy, as shown by this test carried out at a distance of 50 m with 3 12/70 mm slug impacts in a 45 mm square.

The first reason for such ballistic quality comes from the fact that all STF/12 barrels are produced by out-of-mass drilling of chrome molybdenum steel bars. This technology keeps the molecular structure of the steel intact; the tubes thus remain perfectly straight during the silver welding phase at more than 700°c, unlike those produced by cold hammering.

The second reason has to do with the profile of the barrel itself. The STF/12 have barrels with an increased external diameter to have a better rigidity. The bore of the barrels is also determining: The STF/12 barrels of 11.14 and 18 inches are reamed to 18.4 mm then meticulously polished according to a well determined cycle for more than 6 minutes.

The STF/12 then has an internal choke system, which offers superior accuracy to the cylindrical barrels used by many competitors. An INNER HP ACCURACY type choke, 82 mm long, creates a slight hyperbolic restriction, it was developed to optimize accuracy when firing SLUG cartridges. It allows the use of all CIP standard cartridges

Finally, the "door breacher" muzzle brake also plays a role in this quest for extreme precision at medium and long distances. In addition to the reduction of the recoil which makes it possible to maintain a stable position between shots, this muzzle brake with 3 directions of exit of the propulsion gases greatly reduces turbulence at the rear of the projectile. The trajectory is therefore more linear, more stable and more precise.