Among our hunting rifles the SAPHIRE THUMBHOLE comes with the ergonomic thumbhole grip for improved and safer handling, ideal for driven hunting.
The action machined from a solid block of Ergal 55 aluminum alloy is brand new from the oldest Rover action and features two integrated Picatinny rails for fast fitting and regulation of sighting devices.
The bolt with 3 front lugs is no longer a monolithic piece but is made in three parts: the head, the body and the handle. This allows a more accurate manufacturing of the parts, the use of different kind of steel and heat treatments based on the mechanical features required. The bolt action moves very smoothly after assembly and its floating head guarantees perfect contact on all 3 lugs thus enhancing precision.
The barrels of our hunting rifles in AISI 4140 steel (42CrMo4) are all cold hammer forged. Their Multiradial Rifling (MMR) improves accuracy and guarantees longer barrel life, easy cleaning and higher bullets speed. The threaded muzzle comes “break ready”. Interchangeable barrels are available on request (a set of simple tools is also provided). The barrel extension made of NiCrMo steel is hardened and tempered by a special process to improve hardness on the surface and tenacity in the heart; it is the most important part of the gun and the safety is entirely related to this piece together with the bolt head.
There are 2 different types of trigger mechanism in these hunting rifles: standard (1.2 Kg pull) or Set Trigger (the standard pull weight of 1.5 Kg can be reduced to 250g). They are interchangeable and can be replaced by a gunsmith.
The safety is a typical 2-position side lever that locks trigger and sear but will be soon available as a 3-position safety.
The Saphire Thumbhole rifle will be manufactured in the following groups of calibers other than our famous 308 win.:
|GROUP A||GROUP B||GROUP C|
|243 WIN.||270 WIN.||7MM REM.MAG.|
|308 WIN.||7X57||300 WIN.MAG.|
|7MM REM. S.A.U.M.||7X64|
The receiver is machined from a solid block of Ergal 55 aluminum alloy and features two solid Picatinny rails to easily fit the mounting solution of your choice and regulate your gun. The 3-front-lug bolt with 60 ° locking consists of three main parts: head, body and handle.
- The body heat-treated and ground moves very smoothly allowing fast repetition.
- The head in special steel undergoes a thorough heat treatment that makes it strong, but not brittle and therefore able to withstand the high pressure generated by the explosion in the body. The floating head guarantees perfect contact in the barrel extension with all three lugs thus improving precision.
- A 5/16” thread allows to easily switch bolt handle and go from a traditional spoon-shaped hunting handle to a very tactical one.
The most important part of the gun in terms of accuracy and safety is the “barrel extension” with bolt head in NiCrMo steel. This undergoes a special heat treatment for a hard surface with a strong core allowing superior strength and longevity.
The interchangeable barrels are surely fixed to the barrel extension by means of 3 M6 screws that can be removed and replaced using the hexagonal wrench provided.