I had been thinking more along the lines of if the attack somehow continues to escalate after 2 waxed #7.5 shots, escalation to the remaining 2 slugs might be called for. Wishful thinking perhaps, but one can hope that after firing 2 shots, seeing the consequences of hits or misses, a better understanding of what's behind the intended target might be realized and better alignment for a slug or two obtained.
By definition - a violent home invasion is happening fast - the inherent urgency of getting off the first shot, or if very unlucky first two shots, is unlikely to lend itself to much thinking about what might be behind the target. The location of that target within your house is not something you can thoroughly plan. It will be likely you are in a highly confused state, having been aroused from sleep and scrambled to grab and load the shotgun. That leaves a lot of variability insofar as attacker progress through the home. You can't know where he'll be when the confrontation happens, nor how close to you he'll get, nor at what angle relative to various rooms in your house, as he rushes you. The first shot seems by far the most critical in terms of any potential for preventing excessive damage to whatever/whoever is behind this potential attacker.
Of course the intensity of an actual home invasion is unlikely to leave the defender sufficient time to load 4 shells, to be careful about which ones go first. So thinking this through some more I'm leaning now more towards just having waxed birdshot slugs available, no solid slugs. With Canadian safe storage rules it just doesn't make sense to plan for any complexity in the loading under stress. And ultimately it's unlikely one would even have time to load more than 1 shell, probably best loaded directly into the open chamber and racked to prime the trigger. So storing the shotgun, trigger locked, chamber open, with wax slugs as handy as the rules permit...
Then if there's time grabbing a couple more shells to have handy for reloading might be nice, but it seems very unlikely to work out considering one usually doesn't sleep with pockets. Which kind of sucks. But it sort of seems like from the reasoning above (hey, probably flawed, I've got zero experience with this stuff) it follows that a single shot break barrel is every bit as practical as a pump shotgun for HD in Canada. Very different from much of the USA where a loaded gun can be left handy. Dang.
Well, I guess for use at the range the Tac-14 will be fun, and obviously for bear defence on back country hikes the multiple slugs in the tube will be desirable. But for home use, better to think of it as a single shot shotgun, and stick with a wax slug and more in the storage container to fall back to if things kept escalating, ie more than one attacker, and those for whatever reasons persisting after the deafening roar of that first shot being fired, which seems unlikely... unless the 'target' of such an invasion were involved in gangster level nonsense. And for those guys safe storage and single shot loading don't really come into play anyway, they're going to be keeping multiple loaded firearms on hand 24/7.
