Measure Groups Precisely with Neil Jones Tool
If you have a digital camera or scanner, you can measure your shot groups easily with the FREE On-Target software (read our On-Target Software Review). However, not many people want to lug a laptop to the range just to measure their groups. Most folks measure their groups at the range with a small ruler, or a set of calipers. That works pretty well, but there is a much more precise method.
Neil Jones Target Measure Tool
Neil Jones makes a specialized group-measuring tool that fits a special optical viewing lens and shot-size template to your precision calipers. There are two main parts to the tool. The first part, attached to the fixed caliper jaw, is a block holding a spring-loaded plunger with a sharp point (used to anchor the tool). The second part is clamped to the sliding jaw assembly. This viewing unit has a magnifying lens plus a plexiglass plate with scribed centerline and circular reticles for various calibers (.224, 6mm, 30 cal). This device works with both conventional and digital calipers. You’ll find the Jones Target Measure Tool used by the official target measurers at many big benchrest matches. Jones claims that his tool “will speed up the measuring process and be more accurate than other methods.” The Neil Jones Target Measure Tool costs $80.00, which includes magnifier, but not calipers. It comes in two versions, one for dial calipers, the other for digital calipers. Neil Jones also sells his tool complete with dial calipers for $120.00, or with digital calipers for $150.00. It is probably cheaper to source your own calipers.
To order the Jones Tool, visit Neiljones.com, email email@example.com, or phone (814) 763-2769.
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