Strange chemical smell when fired, leaves residue, but performs well and you can't beat the price - Aguila Ammunition High Velocity .22 Long Rifle 40 Grain Copper Plated Lead Round Nose Brass Cased Ammunition

Ammo performs well and is fun to shoot. However you should know that this powder burns dirty. There is a foul chemical burning smell in the air after shooting. Also more residue on average. Aguila and Blazer are cheap dirty ammo but they do perform well. The cleanest .22lr ammo I have used so far is federal match, it leaves very little residue but is also inconsistent because one box had 1-2 light primer strikes per magazine. This aguila ammo had 1 or 2 light primer strikes out of 100 rounds. Overall not bad for budget ammo. Can't beat the price $3.49 for 50.