Muzzle Wear Gauge Gage For M1 Garnad Gunsmithing and Any Rifle Barrel of .30 Caliber

$16.99
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SKU:
20190014

This muzzle wear gauge reads the wear on the muzzle. Please be careful so as not to damage the barrel's rifling or this gauge.

 Features:
1. Muzzle wear gauge for M1 Garand, M1 Carbine or any other .30 caliber rifle barrel.
2. Measures from .300" to .303" diameter.
3. Made of stainless steel with direct reading permanently laser etched markings.
4. Gage reads .30 on the handle and segments indicate last two digits, for example .30 + 15 = .3015 diameter.

 How to use:
Insert the gauge into the muzzle as shown. Read the gauge directly from the side. Observe where the muzzle meets the gauge.
0.0 indicates a. .300 diameter bore, that is, .30 caliber, new, perfect.
0.5 is like new, .3005 caliber. Proper re-crowning will perfect the crown.
1.0 is excellent for a used barrel (.301 cal.) Re-crowning should make it like new.
1.5 is good (.3015 cal.). Proper re-crowning should make it excellent.
2.0 is fair (.302 cal.). Proper re-crowning should make it serviceable.
2.5 is poor (.3025 cal.). Proper re-crowning might make it serviceable.
3.0 or more is a severe wear and is now a British .303 caliber barrel. Replace barrel.

这个枪口磨损量计读取枪口的磨损。请小心,以免损坏枪管的膛线或此量规。

 特征:
1. M1 Garand,M1卡宾枪或任何其他.30口径步枪枪管的枪口磨损量规。
2.直径从.300“到.303”寸。
3.不锈钢制成,可直接读取永久性激光蚀刻标记。
4.量具在手柄上的读数为.30,线段表示最后两位数字,例如.30 + 15 = .3015直径。

 如何使用:
如图所示,将量规插入枪口。直接从侧面读取表。观察枪口与量规的交汇处。
0.0表示 .300直径的孔,即.30口径,新,完美。
0.5就像新的.3005机芯一样。适当的重新磨光枪口将更加完美。
1.0非常适合用过的枪管(0.301 cal。)。重新磨光枪口应该使其像新的一样。
1.5是好(.3015校准)。适当的重新磨光枪口应该使其更好。
2.0是普通的(.302校准)。适当的重新磨光应该可使用。
2.5差(.3025卡路里)。适当的重新磨光可能使用。
3.0以上是严重磨损,现在是英国.303口径。更换枪管