IMRImproved Military Rifle(smokeless powder type) IMRInstallation Maintenance and Repair IMRIntegrated Microscopy Resource IMRIndustrial Mobile Robotics IMRInteressengemeinschaft Modellraketen(German: Model Rocket Interest Group) IMRInternational Morab Registry ...
MAXIMUM LOAD - Case: Win. / Primer: Rem. 2 1/2 / Barrel: 8.275" / Bullet: .430", 240 grain LSWC / Powder: 7.3 grains Trail Boss / MV 917 fps / MAP: 21,600 PSI. .45 Colt STARTING LOAD - Case: Win. / Primer: WLP / Barrel: 7.25" / Bullet: .452", 250 grain LRNFP / ...