ranbo1213 wrote:really though with 12 gauge is there really a need for constant sight picture?? in a high risk HD incident, u may not even have time to bring the weapon to check aim, shooting from the hip per se,
Shooting "from the hip" is difficult enough when you're relaxed at the range, you'll have trouble hitting the broad side of a barn when you're stressed-out and pumped up on adrenaline. Remember, a human's vitals are about a foot wide, and buckshot patterns at indoor ranges are usually even smaller (my HD buckshot shoots a 6" pattern at 7 yards), so being off by just a degree or two can turn a perfect center hit into an ineffective graze or a complete miss. If you can't aim, you might as well be shooting a cap gun.
That's why a consistent cheek weld is important. It's an element of a conditioned shooting stance that places your eye at the same location each time so that you can place your shots effectively without having to deliberately and consciously line up the sights. It's not a type of shooting that'll get you 1-inch groups at the rifle range, but it'll do the job for HD. With practice, shouldering the shotgun, placing your eye, and seeing the point of impact becomes muscle memory, something that you can quickly and reliably accomplish even while your conscious mind is occupied with the stress of a defensive shooting.
ranbo1213 wrote:Every possible scenario is different as u know...my first round is always quality bird shot, then other specific loads i feel will stop the threat. in a house, u don't want anything going through drywall, In the open air incident, bird shot may wing a bad guy and then your next round(s) u go with what comfortable for u to use..
If you know birdshot won't reliably stop a human, why use it for self-defense? If you're shooting at a home intruder with a 12ga, you're employing lethal force, no matter what you're shooting. In that event, why pull your punches? Yeah, penetration through walls can be a concern, but anything that won't go through drywall won't go through a human either, so you're just wasting your time until you get to the effective stuff anyway. And by extending the encounter, you're not only giving the other party a tactical advantage, you're increasing the chances of collateral damage by increasing the amount of gunfire exchanged.
Anyway, more on-topic, it sounds like your paracord shell loop idea is really more intended for survival/bug-out applications, not so much home defense. Maybe the concept would be more practical in the form of an ammo belt or shell sling. It wouldn't get in the way of aiming and shooting as much, it would hold more shells and contain more paracord, and it would be easier to take off for HD duty & reattach in other situations where it would be needed.

If you can figure out how to make one of these out of paracord, I'd be very interested.