Well I use the 10/10/6 rule per stage and for monthly matches usually carry around twice the required ammo in case a new shooter needs it. For big matches I have started carring around a thousand rounds for a week or two. That way I have plenty. I think when I left home in Feb for winter range I took around 900 rounds with me and barely had enough to shoot Rio Salodo on Friday and the main match and some warm up/ practice stages every day prior to my wave on two days and a little ammo fo rops checking work that was done. If the rain would have stayed away on Saturday I would not broughthome a loaded round and would have probably bought a coupple of boxes, as it was I didn't shoot team, Posse, or top gun and only a couple of side matches and I think I brought home 20 loaded rounds. I like to have a loading strip for a reshoot and the right ammount fo rthe stages for the day in my cart and all the rest in the vehicle or camper. You can never have too much ammo but you can run short very easy. I figure that I shot around 1000 rounds a month between matches and practices on average. My goal is to have 12k or more of brass so that during the holidays I can reload for the year and will not have to reload every month. That way I order the powder, primer, and bullets in bulk. I will get the best prices on bulk compoanants and save some money. Right now I keep trying to build up a reserve but something is always out because of the supply train around here. If it is not wads for the shot shells it is large pistol primers or shot or 209 primers. About the only thing that doesn't run short around here is powder. I can get Trailboss and Clays real easy I might hav eto wait a week or pick it up when I'm in ABQ but they are never out. But prime is very much a hit or miss in ABQ where they are cheap but the local gun store keeps them in stock for about $2 more a 1k, Bullets since I have started using Co Cast bullets from San Juan they are at the end of the phone conection . Call up and order and either have them shipped or pick them up at a big shoot. The only thing that is really difficult to get is the Rem Wads and shot for a decent price. Ihave started using the grey AA hull as abck up. But shot can be hard to get since none of the stores in town carry it, and Sportsman wharehouse has been low (1 or 23 bags) or out the last several times that I go and I usually have to spilt the bags with a friend.