I’ll start by saying I generally disagree with candy-caning of magazines in a firearm. Whether a shotgun (slug/buck), or a pistol (FMJ/JHP), the liability of not knowing what you will launch with each trigger press doesn’t seem worth any advantage for me. I’ve seen people do it in LE (especially with a shotgun), and I’ve heard tier 1 instructors in person advocate it and say they practice it. Even if my agency would allow it, I wouldn’t head down that path.
That said, I’m curious what the thoughts are with a candy-caned magazine in a “woods gun” for the larger critters who see us as appetizers. Presuming the gun runs reliably with the different ammunition choices, the difference in POI still concerns me. Are most defensive critter shootings too close for that to matter? Does anyone even track such things? Specifically I’m curious about 10mm and alternating a quality hunting round such as the Federal Trophy Bonded 180gr JSP with something that is designed for pure penetration such as a heavy FMJ or solid copper bullet.
Before anyone tries – I am not going to carry a revolver for this task. I’ve watched the 45 Super thread closely, and while impressed with the results, I’ve got a comfort level and manual of arms familiarity with the Glock that exceeds any other handgun. I carry the Glock on and off duty, and shoot Glocks in matches, so trying to gain and maintain proficiency with another weapon system isn’t high on my list of things to do. I have no delusions of the 10mm being equivalent to the magnum calibers, but I’m much more comfortable with 16 rapid rounds of 10mm than 6 rounds of any 44, 454, 460, 500, etc. And yes, this pistol would not take the place of a shotgun full of slugs. It would be for situations when I can’t get to the long gun quickly enough. And I have a solid grasp of the importance of shot placement.
So if we could skip the recommendations for other calibers or handguns, and focus on the benefits and/or drawbacks of alternating ammunition I’d really appreciate it. Thanks!