Now for a bit of a tangent. I'm reading Rawles "Patriots! Surviving the coming collapse" and I have to say he is through and through Army. His group trained like one, has procedures like one. I know he did multiple stints, and if I was to bet, his father was career military and/or he went to a military academy. He has you carrying more shit than you need, and has you planning for a fight you cannot win. I have tremendous respect for what he's done, but I am of the mindset that a guerrilla fight is a better option for a prepper than a toe to toe slug match like US vs. CCCP Rawles has us planning for. Part of Rawles' opinions are based on his training for the mobile operations the Army has been using since WWII. Two-thirds the force pins down the enemy, with the other third swinging to flank. If you have a Company of troops it works really well. If it's you and one of your buddies then you need different tactics.
Ok, so as a prepper we are not planning on getting into a toe to toe fight. Hit and run. Overwhelming firepower for a brief time. I feel in order to win a fight as a prepper you need to fight like a Navy SEAL, A Green Beret, or the British SAS. If they come at you with a lot of guys, you HAUL ASS. Use terrain to act as a force multiplier. Bounding overwatch to retreat, etc. etc. More in another post.
Ok so back to the original topic. We are looking at a slow slide now, so as crime increases I would suggest carrying your pistol plus two other mags. You also should have a flashlight and a decent folding knife on you at all times. Also, plan to carry on you a couple of bandannas to use as emergency bandages/tourniquets. That should suffice for your day to day carry. Adding a handcuff key is a good idea. Adding a fighting knife isn't a bad idea either. Depends on what you can conceal about your person. Have a extra mag or two in your car in case you get into a running gunfight.
So you are off to walk around town after the total collapse of society, and you can carry long arms in the open. This is where the term "combat load" comes in to play. Now you are carrying three sets of gear on your walkabout. (I refuse to use the word patrol.) You have your combat gear, your assault pack, and then finally whatever your carrying, whether its your BOB, or the water your hauling back to the house.
So your combat gear is your weapon(s) plus ammunition, map and compass, trauma first aid kit, knife, body armor, canteen, a days worth of food, and a small survival kit. If you have a radio, that's part of this as well. You need to keep this as light as possible. There are a few hard and fast rules I found when reading up on Army researchers and what they found:
The distance marched in six hours decreases by one mile for every 10 pounds a soldier carries over 40 pounds.So your combat gear plus your assault pack needs to be lass than 40 pounds, if you are a male weighing about 200 pounds. So if you weigh 100 pounds soaking wet, then all these numbers get correspondingly smaller.
The time of an assault course increases by 15 percent for every 10 pounds over 40 pounds.
The distances traveled are reduced by half when moving over average gradients of ten percent.
So in your assault pack is more gear, some extra ammo, a entrenching tool, towel, first aid kit, toiletry kit, poncho, poncho liner, a second canteen, and 2 more days of food. You drop your assault pack when you get in combat. It's just going to weigh you down.
I did some more digging, and the average infantryman is carrying 300 rounds of ammo on patrol in Iraq. That's 9 pounds just in ammo. But again, this is for extended firefights in an urban area. As a prepper I say fuck that! I'm not going to haul all that crap around. So if it's Mad Maxx vs. the mutant ninja zombies out there I would carry 5 or 6 extra mags for your battle rifle, and one for your sidearm. If you have a shotgun or bolt action rifle, I'd carry 100 rounds of rifle, or 50ish shotgun rounds. With the shotty I'd carry both slug and buckshot, you might need to punch through car doors and shoot quite a distance.
So now back from the tangent to the tangent. These numbers are for a economic collapse, so if your planning for nukes and such, go see what Rawles has to say. Looks to me like you want about 1000 rounds of .22 LR to collect for the stewpot and for some practice ammo. For your shotgun, I going to say 100 slugs, 200 rounds of 00 buckshot. For your pistol, I'd say 1000 rounds of JHP - Jacketed Hollow Points. For my rifle, I plan on having enough for 1000 rounds of ammo. If you have no battle rifle, then at least double the rife or shotgun numbers.
If you have been prepping properly, then you will be a better marksman than the bulk of possible opponents you will have to face. Therefore you need less ammo. Carrying less ammo makes you quicker on your feet, and able to get behind cover so you are better protected in a fight. Then your better marksmanship makes lots of dead mutant ninja zombies.
Now because I reload I just need the supplies for reloading, not the completed rounds. Makes it more compact for storage. These numbers are for combat, not for hunting. For hunting add #2 and maybe #6 shot shotgun shells for ducks and pheasant/grouse respectively. I apologize for the post being so screwy, I got interrupted a million times at work, so it was hard to get the train of thought going again.