Known for its versatility and resistance, the Merkel RX Helix rifle, available to the public in the basic version with walnut butt or in the Explorer Synthetic version that mounts a rotating head shutter together with a linear repetition, which makes it extremely quick and practical to use. This was designed by Merkel to offer the market a rifle suitable for frequent use in hunting situations in which the response times must be particularly quick. The Merkel RX Helix rifle, shown here by Bignami in the version with selected walnut butt has a back cocking lever with which the firing pin is armed or disarmed with a simple push of the thumb. This rifle, both in the version with synthetic butt or the version with selected walnut butt is available with a .243 Winchester, .270 Winchester 30-06 Springfield .308 Winchester, 6,5x55, 7 mm Remington Magnum, 7x64, 8x57 JS and 9.3x62 caliber. Bignami proposes the Merkel RX Helix rifle with a removable EAW connection with lever and Zeiss Duralyt 3-12x50 optics with 6 reticle.