The 260 grain Accubond was built with the 375 H&H and 378 Weatherby rifles in mind, which shoot from 700 to 1000 FPS faster than your 375 JDJ.

Doc Rodgers loves the bullet for game big and small, but he's shooting them out of a 375/284 in an XP-100. That cartridge shoots several hundred feet per second faster than your JDJ.

You are experiencing a common problem among handgunners - running into bullets that just won't open at typical handgun velocities. Any of the lighter for caliber Hornady's or Sierra's are your friend.

Brian.