357 SIG Ammunition Gauge

Description

Choose between SLOTTED or NON-SLOTTED.

AMMUNITION GAUGES are uniquely designed to check loaded ammunition, giving you the ability to check your factory ammunition or reloads against a spec chamber. The gauge is machined to the SAAMI minimum chamber spec for the 357 SIG caliber. This allows you to check brass sizing, headspace, bullet seating, and crimping all with one gauge. Stainless Steel construction. These gauges are designed primarily for use where the brass is always full length resized. Please see our FAQ for details.

SLOTTED GAUGES are an improvement of  existing ammunition gauge design. By taking an ammunition gauge and opening up a window into it, you can now actually see the shoulder, and how everything seats into the chamber. You can verify the fit visually. And see the interface between your ammo and a chamber that you would never otherwise see. This unique tool is now patented.

These gauges can help you both troubleshoot and improve your reloads and purchased ammunition.  They can be used to catch several common issues with reloading 300BLK, including issues with thick necks. Use as a chamber checker to ensure that all of your rounds will work in any of your firearms. Use as a go/no go gauge to check the ammo headspace measurements against SAAMI min/max.

These gauges have steps on the face to correspond to the cartridge spec minimum brass headspace measurement, and the minimum and maximum chamber length. The diameter of the gauge is SAAMI min chamber spec, which is larger than the max spec of the cartridge. The length of the gauge corresponds to the max length of the cartridge.

Any rounds that fit the gauge will chamber. Unlike other gauges, ours includes the throat and bore, so that when you check the loaded ammunition, you are checking the complete round, not just the case.

These gauges allow you to:

• Speed up your checking process
• Check many critical dimensions at once
• Check your brass prior to loading it
• Perform a chamber check on your ammo, without having to chamber it in a firearm
• Perform a headspace check on your ammo
• Perform a cartridge length check on your ammo
• Catch issues with concentricity

Additional information