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Home Gunsmith Tools Barrel Tools Reamers Shotgun Reamers MANSON PRECISION "BACK BORE" REAMER Support
513030740
Alter Choke Constriction Without Changing The Choke
High-quality reamer made by Dave Manson. Lets you easily add some choke constriction to a shortened or standard length barrel without threading or altering the actual choke. Just stop reaming 2" to 3" short of the muzzle and the difference in diameter between the bore and the muzzle is the degree of choke. Tightens chokes on barrels that are too thin for screw-in tubes. Plus, full-length back boring can restore the interior surface of rusted and pitted barrels to "like new" far more quickly than polishing or stoning.

SPECS: M7 high speed steel. 5" (12.7cm) long with eight straight flutes. 12 gauge only.

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209.9 209.9 1 GBP
Product no.: 513030740
MANSON PRECISION .740" 12 GA. REAMER
Mfr Part: BR12GA740 High-quality reamer made by Dave Manson. Lets you easily add some choke constriction to a shortened or standard length barrel without threading or altering the actual choke. Just stop reaming 2" to 3" short of the muzzle and the difference in diameter between the bore and the muzzle is the degree of choke. Tightens chokes on barrels that are too thin for screw-in tubes. Plus, full-length back boring can restore the interior surface of rusted and pitted barrels to "like new" far more quickly than polishing or stoning.
209.9 GBP 2 £209.90 *
Delivery time approx. 7-14 days.
2 pcs. in the USA warehouse
Specs: Cartridge: 12 Gauge Style: Back Bore
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Top takeaways

  1. The BACK BORE reamer allows for adding choke constriction to 12 GA. barrels without threading or altering the choke, by stopping the reaming process 2-3 inches before the muzzle.
  2. It is suitable for tightening chokes on barrels that are too thin for screw-in tubes and can restore rusted or pitted barrels to a "like new" condition.
  3. Constructed from M7 high-speed steel, the reamer is 5 inches long, features eight straight flutes, and is designed specifically for 12 gauge shotgun barrels.

Attributes

Cartridge: 12 Gauge Style: Back Bore Delivery weight: 0.159kg Shipping height: 28mm Shipping width: 28mm Shipping length: 155mm

Item details

Made in USA



Enhance your shotgun's performance with the BACK BORE reamer! 🔧 Perfect for 12 GA barrels, it adds choke constriction easily and restores surfaces.

Alter Choke Constriction Without Changing The Choke
High-quality reamer made by Dave Manson. Lets you easily add some choke constriction to a shortened or standard length barrel without threading or altering the actual choke. Just stop reaming 2" to 3" short of the muzzle and the difference in diameter between the bore and the muzzle is the degree of choke. Tightens chokes on barrels that are too thin for screw-in tubes. Plus, full-length back boring can restore the interior surface of rusted and pitted barrels to "like new" far more quickly than polishing or stoning.

SPECS: M7 high speed steel. 5" (12.7cm) long with eight straight flutes. 12 gauge only.

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