Converters & Lookups Calculators

The lookups here collect reference charts that hunters use often, such as shotgun chokes and deer aging by tooth wear. Each lives in its own section as well, so the links below take you to the same pages.

Which tool answers which question

• Deer Aging by Teeth Lookup: Estimate a deer's age from tooth wear and replacement patterns.
• Shotgun Choke Chart: Choke constriction and typical pattern percentage by choke designation.

Reference, not rules

A choke chart shows the typical constriction of each choke name, and your own barrel and ammunition decide the real pattern, so test it. Tooth-wear aging is an estimate with an error range, especially for older deer.

How the lookups fit with the calculators

Use the choke chart to understand what each choke name means, then use the shotgun calculators to estimate pellet counts and pattern density, and finish with a real pattern test. Use the tooth-wear lookup with other evidence such as body size and antler development, and treat it as an estimate. Seeding rates for food plots depend on your soil test and the seed maker's advice.

Common mistakes

• Trusting a chart over a pattern test. Test your own gun.
• Treating tooth wear as exact. Use it as an estimate.