The other day, I was shopping for cleaning patches at my local discount store. Noticed that the price was the same for rifle patches and for 12 gauge shotgun patches (Hoppes) and that there were the same number of patches in all the blister packs. So, I bought some 12 ga. and took them home. Cut in fourths, they are good for .22 and .243 calibers. Cut in thirds and doubled, they are good for .270 cal. and cut in half and doubled, they fit well for .30 cal. and 8mm. (all fits made with the appropriate caliber cleaning jags) I didn't try any other calibers but am sure it can be figured out. So, you don't need to buy and store all the various caliber patches unless you prefer to and there is a $ saving if you don't mind a little scissor work.
Can anyone provide info. on where to buy bulk patching material? That is better yet but I've lost my local source of supply.