These files are distributed freely to all of the air gunning community. Some files are in .zip format, just download and double click the files of choice below to open. All of this information is available for you as a download. Just pick and choose what you need and apply those that fit your needs. It costs you nothing more than your time, and they are just a click away.

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Airgun Calculation Converter

Introduction to Adult Airgunning

Airgun Shooting Positions

B1, B2, KL3B Trigger Mods

Airgun Sighting Systems

Minute of Angle

B3 B-4-2  Replacement Spring

Gamo CFX rotary breech seal repair

B-4-2 Scope rails

Moly 60 Paste

Optically centering a scope

Caring  for your B-21/B30

Pellet Sizing

Caring for your B19  and Gamo

Pellet Testing in Spring Airguns

Some B-19 and  Gamo fixes

Caring for your B-20/B-26

Safety mod for Underlevers and Sidecockers

Caring for your B-4 and KL-B3

Scope Correction

Charlie's Barrel Tool

Scope Definitions

Charlie's  spring compressor

Scope Shim Guide

Compasseco Seal info

Scope zeroing target

Co2  bulk filling 

All about lubricants

Seal Alternatives

Dieseling vs Detonation

Seal Fabrication

Excel Chrony data processor

Shooting from the bench

Fast Deer Tune up

Shooting Springer's Accurately

Fast deer trigger mod

Sighting in Adjustment

Fitting and Mounting Scopes

Spring Compressor (Simple)

Fixing a misaligned barrel

Hold sensitivity

Targets

Installing scope on B4-2

The Effect of Scope Cant

Handlapping Tutorial

 What pellet should I use?

Firelapping Tutorial