WHAT IS THE MOST WEATHERPROOF IGNITION SYSTEM, THE #11 CAP, THE MUSKET CAP OR THE 209 PRIMER?
Weatherproof means that the cap or primer has to fit tightly enough that water or moisture can’t get past it into the flash channel between cap/primer and powder charge. In White rifles, the best is with #11 caps simply because the fit is the best. The musket cap is second and is very nearly as good as the #11 cap. The 209 primer is also good in the new Thunderbolt because the rim of the cap is pinched tightly between bolt face and breech-plug, The 209 conversion for the M97 Whitetail Hunter and the M98 Elite Hunter is very poor. This is also true of all 209 primer fired guns of any brand except the White Thunderbolt and the Knight, which uses a plastic holder to protect the primer.
