Tetra Gun Prosmith Square Cotton Patches in bulk quantities in various sizes:
3/4" is for .17-.22 cal. (1400 ct.)
1" is for .22-.270 cal. (1400 ct.)
1 1/2" is for 6mm-30 cal. (1200 ct.)
1 3/4" is for 7mm/27-38 cal. (1200 ct.)
2 1/4" is for 9mm/.38-45cal./410 and 20ga (1000 ct.)
2 1/2" is for 45 cal. (1000 ct.)
3" is for 12 ga. (900 ct.)