Hoppe's 9 Gun Cleaning Patches .270 Caliber .35 Caliber Pack of 50 Synthetic. The Hoppes Bore Gun Cleaning Patch is ideal for pre-cut calibers and gauges. Specifications for Hoppe's 9 Gun Cleaning Patches: Manufacturer: Hoppe's 9 Condition: New Features of Hoppe's 9 Rifle Bore Cleaning Patches: Uniformly woven patches Ultra-absorbent Pre-cut caliber and gauges Package Contents: Hoppe's 9 Rifle Bore Cleaning Patches Hoppe's 9 No. 3 Gun .270 to .35 Cal. Gun Cleaning Patches - 50 per pack