...unless your talking pistols, I can do that w/ 3 or 4 20rnd mags in my 10/22 using a 500 pack. thats all i shoot.Avoid the 500 count boxes if you're looking for good accuracy. The good CCI match grade stuff is good, but pricey. When shooting the mega box stuff, if you listen close, you'll notice the irregular sound of one shot compared to the next. With the match grade, every shot sound the same, and can get pretty tight patterns at 50 yds. A friend of mine was able to cover 10 shots with a quarter at 50 yds with the CCI match grade.