Sorry if this has been covered, I know ammo topics and over penetration have been, as I have read for hours on many of them.
I am moving from a house where I can use 5.56mm bonded soft points (55gr Gold Dots.) without worrying about killing me neighbors or other people in the house.
In two weeks I will living in a small apartment. Not much walls to go through except ones going into neighbors unit, so that is a concern. Also, being a studio, I will not have much things for the bad guy to hide behind, so barriers are not really a concern.
I have a few other loads for HD use already: Hornady .223 62gr Barrier, MK 318 SOST, and XM556SBCT3 (it is the 62grain bonded soft point). I have a different idea of use for those, all is within 25 yards where I have not noticed zero change enough to be a problem.
So should I change from the Gold Dots, to something that is less “barrier blind,” given the circumstances? Or, as I read about TAP 55gr, anything that does not penetrate 12" is useless?
I think in that situation it is of marginal benefit to change from the GD. Not being barrier blind does not mean it won’t penetrate barriers, just that the bullet is either mangled or smashed into FMJ configuration and will not perform well in tissue on the other side. It seems any bullet that is able to penetrate 10-12" of tissue and perform well is very likely to penetrate frame and wallboard walls. So going to a OTM or other style may not lessen the penetration danger much (reduces chance of fatal accidental wounds but does not eliminate that risk).
It wouldn’t hurt to use the OTM or other styles but just realize you are not preventing over-penetration, just lessening the rate of accidental fatalities a bit.
Of course more effective measure to reduce risk is to pre-think the likely angles and what is behind the walls, brainstorming anyway you can cover the walls that a perp would likely be in front of to give better protection, arranging furniture to force an intruder to be at a safer angle, etc.
Both are bonded bullets which don’t depend on fragmentation for effectiveness…as it relates to the slightly higher velocity from 5.56 pressures. At HD distances I don’t think there will be a difference…course I’m no expert either. I’m just a firm believer of more focus on putting them where it counts and less focus on the minute differences from one brand to another.