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Reference Guides
Wad manufacturer recommends using wads with the same diameter as the bore for Rocky Mountain brass, paper, and plastic.| Gauge | Bore Diameter | Wad Diameter |
|---|
| 4ga. | 1.070" | 1.050" |
| 5ga. | .976" | .995" |
| 6ga. | .919" | .935" |
| 7ga. | .873" | .888" |
| 8ga. | .835" | .850" |
| 9ga. | .803" | .815" |
| 10ga. | .775" | .788" |
| 11ga. | .751" | .762" |
| 12ga. | .729" | .740" |
| 13ga. | .710" | .720" |
| 14ga. | .693" | .703" |
| 15ga. | .667" | .677" |
| 16ga. | .662" | .672" |
| 17ga. | .649" | .659" |
| 18ga. | .637" | .647" |
| 19ga. | .626" | .636" |
| 20ga. | .615" | .625" |
| 24ga. | .579" | .589" |
| 28ga. | .550" | .560" |
| 410 | .410" | .415" |
| 30cal. | Rifle | .310" |
| 32cal. | Rifle | .320" |
| 38cal. | Pistol(.357") | .360" |
| 38cal. | Rifle | .360" |
| 40cal. | Rifle | .410" |
| 44cal. | Pistol(.429") | .430" |
| 44cal. | Rifle | .450" |
| 45cal. | Pistol(.452"-.454") | .455" |
| 45cal. | Rifle | .460" |
| 50cal. | Rifle | .510" |
Track of the Wolf produced Parker Bros. marked shotshells require larger wads, refer to the filter or chart for recommended size.| Parker Bros. Brass | "A" Card | "C" Fiber Wad | "B" Overshot card |
|---|
| 8 gauge | 7 gauge | 7 gauge | 7 gauge |
| 10 gauge | 9 gauge | 9 gauge | 9 gauge |
| 12 gauge | 11 gauge | 11 gauge | 11 gauge |
| 20 gauge | 19 gauge | 19 gauge | 19 gauge |
MagTech brass require larger wads, refer filter or chart for the recommended size.| MagTech Brass | "A" Card | "C" Fiber Wad | "B" Overshot card |
|---|
| 12 gauge | 11 gauge | 11 gauge | 10 gauge |
| 16 gauge | 14 gauge | 14 gauge | 13 gauge |
| 20 gauge | 18 gauge | 18 gauge | 17 gauge |
| 24 gauge | 20 gauge | 20 gauge | 19 gauge |
| 28 gauge | 24 gauge | 24 gauge | 24 gauge |
| 410 gauge | .430" diameter | .430" diameter | .450" diameter |
