Leupold Optics Lens Pen Brand_Butch's It will remain effective for

It will remain effective for up to 30 washes and is great at removing stubborn carbon fouling and residue from cartridge cases

When used in conjunction with Warne Maxima QD Rings

RWS Magnum SP Specifications:

From the onset

The majority of these bullets have a boat tail shape to further minimize drag and improve ballistic coefficient

Leupold Optics Lens Pen Brand_Butch's It will remain effective forThis compact, two step LensPen has a natural hair brush which is fully retractable for protection when not in use. A clean brush is key because its the first thing to touch the lens. The microfiber cleaning tip automatically replenishes itself with a state of the art dry cleaning compound. Compact and ergonomic, its great for your workbench, the range, or in the field.