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SHOTGUN CHOKE GAUGES

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Bisley solid brass shotgun gauge.

BISLEY SHOTGUN CHOKE GAUGE

Bisley Brass 12 Gauge Shotgun Choke Tester12 GAUGE

2¼" / 55mm long,
48 grams.


£11.00p each
Bisley Brass 20 Gauge Shotgun Choke Tester20 GAUGE

2" / 50mm long,
30 grams.


£11.00p each
Condition: New

Choke gauge with engraved British gradients.

Brass with stainless steel keyring.

For quick and accurate measurement of 12 or 20 bore fitted shotgun chokes.

Clearly marked British gradients;

  • BORE (OPEN) ~ True cylinder ~ 0.00" ~ Cylinder (on 12g gauge only).
  • IMP ~ Improved cylinder ~ 0.05" ~ Skeet
  • 1/4 ~ Quarter choke ~ 0.10" ~ Improved Cylinder
  • 1/2 ~ Half choke ~ 0.20" ~ Modified
  • 3/4 ~ Three quarter choke ~ 0.25" ~ Improved Modified
  • FULL ~ Full choke ~ 0.35" ~ Full


STEEL SHOT WARNING;

It is highly dangerous to use more than ½ choke when using steel shot.


QUAKE BUSHWACKER SCOPE COVER SIZE GUIDE
BORING OF GUN RANGE IN YARDS
10 15 20 25 30 35 40
True Cylinder 20" 26" 32" 38" 44" 51" 58"
Imperial Cylinder 15" 20" 26" 32" 38" 44" 51"
1/4 Choke 13" 18" 23" 29" 35" 41" 48"
1/2 Choke 12" 16" 21" 26" 32" 38" 45"
3/4 Choke 10" 14" 18" 23" 29" 35" 42"
Full Choke 9" 12" 16" 21" 27" 33" 40"

How to use;

Simply push the gauge into the muzzle of the gun and when the segment fits the bore perfectly, simply read from the gauge for the amount of choke.

This high quality shooting accessory is essential when buying a fixed choke pre-owned gun, as the choke stamps may not always correspond to the amount of choke in the bore.

Ie. sometimes choke is bored out by a gun smith and then not always re-stamped with the new choke.

As for multi-choke guns, the choke stamps can wear off in time and it can then be confusing as to which choke tube if fitted.

Bisley Brass 12 Gauge Shotgun Choke Tester

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