Beretta Italy factory produced Crio Chokes, accept no substitute.Benelli is the first firearms manufacturer to apply industrial cryogenic treatments to small arms barrels and chokes in order to enhance ballistic performance. Until now, the cost and complexity of cryogenic treatments have limited applications to high-tech industries like aerospace, surgical instruments and other specialist sectors.The Crio System has also been successfully applied to the choke. Crio chokes are elongated in shape with a particularly gentle and gradual taper to the barrel bore. These characteristics have been specially developed to avoid clustering and to reduce shot deformation. It is a well-known fact of aerodynamics that a perfectly spherical ball will move faster and in a straighter line than a flattened or deformed one.Cryogenically treated steel expands very little under the effects of heat and pressure. This allows Crio barrels & chokes to vibrate and expand uniformly on firing. The pattern obtained using the Crio system is broader, better distributed and more uniform, and pattern centres do not shift as the number of rounds fired increases, all to the benefit of accurate shooting. Cryogenic treatment also extends choke tube life by improving resistance to wear and attack by combustion residues.ConstrictionsCylinder – 83004Improved Cylinder – 83003Improved Modified – 83002Modified – 83001Full – 83000Start of lstUrls_of_images_in_html_descriptionProduct Number: 8300Beretta Italy factory produced Crio Chokes, accept no substitute.Benelli is the first firearms manufacturer to apply industrial cryogenic treatments to small arms barrels and chokes in order to enhance ballistic performance. Until now, the cost and complexity of cryogenic treatments have limited applications to high-tech industries like aerospace, surgical instruments and other specialist sectors.The Crio System has also been successfully applied to the choke. Crio chokes are elongated in shape with a particularly gentle and gradual taper to the barrel bore. These characteristics have been specially developed to avoid clustering and to reduce shot deformation. It is a well-known fact of aerodynamics that a perfectly spherical ball will move faster and in a straighter line than a flattened or deformed one.Cryogenically treated steel expands very little under the effects of heat and pressure. This allows Crio barrels & chokes to vibrate and expand uniformly on firing. The pattern obtained using the Crio system is broader, better distributed and more uniform, and pattern centres do not shift as the number of rounds fired increases, all to the benefit of accurate shooting. Cryogenic treatment also extends choke tube life by improving resistance to wear and attack by combustion residues.ConstrictionsCylinder – 83004Improved Cylinder – 83003Improved Modified – 83002Modified – 83001Full – 83000End of lstUrls_of_images_in_html_description