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AMMO CHECKERS MULTIPLE CALIBERS Reviews & Ratings

LYMAN AMMO CHECKERS

Lyman's Ammo Checkers check the quality and consistency of both reloaded rounds and purchased ammunition. A must for any auto shooter for easy and consistent feed. You can't afford misfeeds, so get the easiest "no-go" gauge available today!

These Ammo Checkers are gauges that allow a reloader to quickly confirm that their ammunition will fit in their chamber. Machined from solid blocks of 6061 T6 aircraft grade aluminum and cut with custom tooling to SAAMI minimum chamber dimensions. Ammo Checkers are available in three designs covering most common handgun and rifle calibers. One gauge will work with a variety of calibers. Just drop your loaded rounds in the ammo checker, and if the round fits into the gauge, it will fit in the gun's chamber. Each caliber is clearly engraved on the gauge. Bright orange anodizing makes them easy to find on your reloading bench. Upgrade your reloading area today with Lyman’s Ammo Checkers and begin saving.

Handgun Gauge - 380 Auto, 9mm Luger, 38 Super, 40 S&W, 45 ACP, 38 Special/357 Magnum, 44 Magnum/Special, and 45 Long Colt

Small Rifle Gauge - 204 Ruger, 22 Hornet, 223 Remington, 22-250 Remington, 300 AAC Blackout, and 7.62x39mm

Large Rifle Gauge - 243 Winchester, 270 Winchester, 30-30 Winchester, 308 Winchester, 30-06, 300 WSM

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5 Stars

86%

4 Stars

3 Stars

2 Stars

1 Stars

14%

Reviews Summary

Overall, many customers find the AMMO CHECKERS MULTIPLE CALIBERS tool useful for ensuring proper chambering of various calibers, particularly noting its value for handloaders. However, some users reported inconsistencies with its measurements, suggesting it may not provide the reliability expected, especially for crucial calibers like .45 ACP. Despite this, several users still recommend the product for its multi-caliber applicability.

What Reviewers Are Saying

Product Utility

75%

Many customers appreciate the tool's function as a necessary addition for ensuring proper chambering of multiple calibers during reloading, labeling it as an essential item for handloaders.

Value for Money

50%

Numerous reviews highlight the product's affordability and good value, making it a worthwhile investment for those who reload ammo in various calibers.

Measurement Inconsistency

25%

Some users express concerns regarding the tool's measurement accuracy, particularly for .45 ACP rounds, with suggestions that it may lack the reliability found in other gauges, such as those by L.E. Wilson.

Packaging Quality

15%

Reviewers note that the item is well-packaged, which contributes to the positive first impression and suggests durability.

Recommendation and Alternatives

20%

While many endorse the product, some users suggest alternatives, particularly the L.E. Wilson gauge, for those prioritizing accuracy and reliability in their reloading process.

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lyman handgun ammo checker

I wish I had gotten this long ago, It makes for a good double check of your finished ammo. It is great to especially check for taper crimp on auto pistol rounds. Thanks Lyman for a great tool.

Would you recommend this? Yes, I would recommend to a friend

by CHRISTOPHER WILLARD on March 30, 2026

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handy.

This is a required tool, to insure proper chambering for reloading the ammo I use multi-caliber checker.

Would you recommend this? Yes, I would recommend to a friend

by RUSS RUCHERT on December 04, 2025

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Handy tool.

I used the tool as insurance.

Would you recommend this? Yes, I would recommend to a friend

by JAMES R DEDRICKSON on October 12, 2025

Verified Purchase

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Works well

I reload 5 of the 6 calibers this ammo checker covers, a good value for the price, a must have for handloaders.

Handy tool

If your reload chambers in this block, it will chamber in your Weapon. Great tool, if you reload multiple calibers. Specially if you reload military calibers, plus the new 300 blackout. This tool is well worth the money

Forgot to give the rating stars !!

Definatly a five star rating

Go,no-go gauge a bust!

I am a competitive Bullseye pistol shooter and have been reloading for ~10 years. I recently ran into some issues with my 45 ACP reloads, in that they would not cycle in my Golt Gold Cup.I was searching for go, no-go gauges and came across this item. While the majority of the reloading I do for pistols is in 45 ACP, I also reload 9mm and 45 Long Colt. So the prospect of having these calibers in one tool was very appealing. Generally, I would just by the L.E. Wilson gage and be done with it. In this case, I bought both. If the Lyman item worked it would certainly save me some space on my workbench. The item was packaged well and looked like it would hold up to a lot of use. I had ~20 - 45 ACP loaded rounds, that would not cycle in my pistol, ready to test. I was surprised that all of the rounds easily fit into the Lyman gauge. I turned the gauge over and all of them fell out with ease also. At this point, I took apart my pistol and dropped each round into the barrel. Each round would not completely seat in the chamber. I tried these rounds with another 45 that I had with the same results (Dan Wesson PM-EXP). I then tried the same rounds in the L.E. Wilson gage. Each round would NOT seat into the gage, they were ~3/8 - 1/4 inch shy of seating properly (which is what I would expect since they didn't seat in my barrels). I did the same procedure with rounds that fit perfectly in my pistols. Each gauge, the Lyman and L.E. Wilson, "passed" the loaded rounds with ease. Takeaway: do not buy this gauge. The SAAMI accuracies that it indicated it is machined to are in question. Right now this is a $30 paperweight. Save your money and buy a L.E. Wilson gage, if you need reliability and consistency, it is well worth it. NOTE: I addressed the issue with my "failed" 45 ACP rounds but running them through a Lee Carbide Factory Crimp Die. This die sizes the round while it crimps the bullet. Also a good investment.