Brownells Long Forcing Cone Chamber Reamer 410 Ga.

Double-duty reamers lengthen short chambers to modern standard or magnum lengths and cut the new long forcing cone at the same time - OR - will cut a long forcing cone without lengthening the chamber for the gunsmith seeking improved shooting performance for his customer. Flute placement, relief and angle are designed to give the best possible results on all types of barrel steel (except on chrome lined barrels, of course!). The 1A 1/2" long (approximately) forcing cone created is performance proven to give optimum results in any length chamber. (For complete instructions see below our detailed, illustrated booklet, Measuring and Rechambering Shotgun Chambers.) Reamers are gr Mfg: Brownells SPECS: 5-A 3/4" (14.6cm) long overall. 1" (2.5cm) long hex section: A 1/2" (12.7mm) across on 10, 12, and 16 ga.; 7/16" (11.1mm) across on 20 ga.; 3/8" (9.5mm) across on .410 (10.4mm). 1-A 1/2" (3.8cm) long forcing cone cutting section. 7 flutes, straight cu