Data for Shot Shell reloading
Vihtavuori now offers reloading data for shotgun loads for 12 gauge / 12/76 caliber shotguns. The reloading data is for nickel plated steel shots and lead shots, respectively. For flexible usage for all handloaders, we provide our shot shell reloading data in metric and imperial dimension systems, i.e. charge weight is available in grams and grains as well as velocity in meters and feet per second. Note that the shot loads have been measured in grams, ounce weight is only indicative. Velocity has been measured at a distance of 2,5 meters from the muzzle. All the loads in the shotshell reloading data sheets are pressure tested according to the C.I.P. method. The listed maximum loads should never be exceeded.
We wish you successful shotgun reloading with Vihtavuori premium powders!
All of this reloading information has been provided by Nammo Vihtavuori Oy. The data given here were obtained in laboratory conditions following strictly the CIP (Commission International Permanente) rules for caliber 12/76 according to June 14, 1984 Edition and revision dated October 17, 2018. The listed maximum loads have been determined according to the CIP pressure specification.
These test method has been deemed to be safe throughout the world. Pressure is measured from inside the case according to the CIP.
DO NOT ATTEMPT ANY EXTRAPOLATIONS. PLEASE FOLLOW THE DATA AS WRITTEN.