Reliability. In both function and performance, 10mm 105 grain DRT ammo will function in all 10mm weapons reliably and is the staple of the DRT line of projectiles and ammunition. Very light felt recoil and standard pressures allow the shooter to have faster follow up shots as well as better accuracy. In tests, the DRT 105 grain 10mm bullet penetrates semi-hard barriers like sheetrock, plywood, car doors, bone and most glass, then still performing well passing through clothing and into the gelatin test block. Utilizing a Hollow Point Flat Based (HPFB) design, the bullet is engineered to delay its expansion 1-2 inches before the jacket begins to peel back exposing the core. Please read our FAQ section before ordering.