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L.E. Wilson has been turning out precision reloading tools since 1927, and the Pistol Max Gage for .40 S&W carries that same reputation for tight tolerances and no-nonsense quality. It's a single piece of polished steel cut to maximum SAAMI cartridge dimensions, giving handloaders a fast, repeatable way to confirm their ammo is dialed in before it ever sees the range.
This gauge does more than just measure case length. Drop a finished round in and it checks the critical dimensions all at once: mouth diameter, base diameter, rim thickness and diameter, overall case length, and bullet diameter. The idea behind it is simple. If the cartridge drops freely into the gage, it should chamber in any firearm cut to SAAMI spec for .40 S&W. That makes it just as handy for verifying factory ammo as it is for your own handloads.
The .40 S&W is notorious for case bulge, since so much brass gets fired through unsupported chambers and then resized. This gage shines at catching those problem rounds. Reloaders who run it regularly point to its tight, honest tolerances and its knack for flagging bulged cases or crimp issues that a single-dimension gauge would miss. Things like oblong rounds, bowing during sizing, or a swollen base all get caught here before they turn into a feeding jam or worse.
Machined and made in the U.S.A., the PMG-40S is a tool you buy once and keep on the bench for the long haul. There's nothing to calibrate, no batteries, no moving parts to wear out. Keep it next to your press and make gauging every round part of your routine. For anyone loading .40 S&W in volume, it's a small tool that saves a lot of headaches.
It checks all the critical maximum dimensions of a loaded .40 S&W round in one pass. That includes case mouth diameter, base diameter, rim thickness and diameter, case length, overall loaded round length, and bullet diameter. If the cartridge drops freely into the gage, it should chamber in any firearm cut to SAAMI spec for the caliber.
Yes, and that's one of its strongest uses. The .40 S&W is prone to case bulge from unsupported chambers, and this gage's tight tolerances will flag a swollen base or body that a single-dimension gauge would let slip by. Catching those rounds at the bench keeps them from causing a feeding issue or worse down the line.
Absolutely. While it's built with handloaders in mind, the gage works just as well for spot-checking factory .40 S&W to confirm it meets maximum SAAMI dimensions. Any round that drops in clean is good to go.
No. It's a single piece of machined steel with no moving parts, so there's nothing to calibrate and no batteries involved. Drop a round in, read the result, and you're done.
| UPC | 857949005180 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | PMG-40S |
| Shipping Weight | 0.25 |
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