Exact 2015 powder2015 powder is a quick burning, one-base, extruded rifle powder that performs incredibly effectively in compact to medium varmint calibers (223 Rem, 204 Ruger). 2015 is a popular choice for 1st-course efficiency in benchrest calibers and is usually suggested for use in huge bore straight wall cartridges (45-70, 458 Earn Mag). 2015