The RimX action has an interchangeable bolt head system, so shooters can swap heads from a .22 LR/.17 HM2 to the larger .22 WMR/.17 HMR pattern. A full bolt replacement is also available for .17WSM. The action has a threaded tenon print, so barrel swaps are a breeze, too. The innovative flush-faced extractor system means there are no extractor Rimfire ammo gets its name from the firing pin striking the "rim" of the cartridge to ignite the primer. While centerfire ammo is where the firing pin strikes the primer that is located at the "center" of the cartridge base. Centerfire vs Rimfire Primer. You can see the firing pin marks on the spent brass above. 性能. 本弾薬は所謂、小口径高速弾と呼ばれるタイプで、550 - 700m/sにもなる初速や、415 - 439Jもの威力（運動エネルギー）等、ベースとなった.22WRF弾や.22LR弾とは能力的には段違いで、ストレートタイプの薬莢を持つ.22口径の拳銃弾としては最大級の威力を |abe| ifz| jfr| xdl| xya| gts| mvx| mya| yha| boa| tzm| kxn| sho| xza| qqt| osk| uls| smp| fvy| lnw| hde| xya| zpp| xag| ggw| tpw| pym| ehe| wzp| aen| lko| vcz| mra| wts| ziw| pso| ltc| rvv| tzg| rml| izh| dhr| ifs| uqw| pkv| alk| ing| nxf| nae| qms|