In centerfire ammunition, the primer compound is located on a small, round primer that is attached (for lack of a better term) to the bottom of the case. Because the primer is in the center of the case, itâs centerfire ammunition. Rimfire ammunition is different.Because rimfire ammunition generally refers to .22 caliber ammo (very small for you new shooters), the case is way too small to install primers in the center.n centerfire ammunition, the primer compound is located on a small, round primer that is attached (for lack of a better term) to the bottom of the case. Because the primer is in the center of the case, itâs centerfire ammunition. Rimfire ammunition is different.
wisp (plural wisps) 1  A small bundle, as of straw or other like substance; any slender, flexible structure or group. A wisp of smoke rose from the candle for a few moments after he blew it out. 2  A whisk, or small broom. 3  A will o' the wisp, or ignis fatuus. Tennyson the wisp that flickers where no foot can tread.
Sharepoint solution file. WSP is a file extension for a solution file used by Windows. WSP stands for Windows Sharepoint. WSP files are CAB files containing a set of features, site definitions, and assemblies that can be applied to a group of computers. WSP files are reusable and easily distributable; different features of the âSolutionâ can be enabled or disabled selectively.