Item Package Dimensions L x W x H | 6.22 x 3.7 x 1.54 inches |
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Package Weight | 0.13 Kilograms |
Item Dimensions LxWxH | 1 x 1 x 1 inches |
Item Weight | 0.26 Pounds |
Brand Name | Hornady |
Warranty Description | No-Risk, Lifetime Warranty |
Color | Metal |
Material | Other |
Suggested Users | Reloading Equipment |
Number of Items | 1 |
Manufacturer | Hornady |
Part Number | HK66 |
Included Components | Hornady Lock N Load Headspace Gauge Kit |
Sport Type | Hunting, Shooting |
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Hornady HK66 Lock-N-Load Headspace Gauge Kit with Body
- Includes lock n load headspace gauge, product manual
- Extends brass life
- Improves accuracy
- Allows for comparisons between fire-formed brass and re-sized brass
- Sport type: Shooting
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From the manufacturer
Lock-N-Load Headspace Comparator Body with 5 Bushing Set | Item #HK66
The Lock-N-Load Headspace Comparator extends brass life, improves accuracy, and enhances safety. The gauge measures variations in brass before and after firing or re-sizing. It allows for headspace comparison between fire-formed brass and re-sized brass.
The five bushings that come with the Lock-N-Load Headspace Comparator provide the ability to check most bottleneck cases, from .17 Rem through belted magnums. Ackley Improved chambers use the same bushing size as the parent case. See chart provided or consult product instructions for cartridge/bushing size details.
Determining the proper bushing diameter:
If you add the neck diameter and the shoulder diameter and divide that number by two, use the bushing closest to that number.
About Us
'Ten bullets through one hole' was the philosophy of Joyce Hornady, the company's founder.
Founded in 1949, Hornady Manufacturing has become a world-leading innovator of bullet, ammunition, reloading tool and accessory design and manufacturing. At Hornady, ammunition is more than their livelihood. It's a major part of their daily life.
Hornady acquired SnapSafe in 2015 to complement and expand their offerings in the security products market segment.
Product Description
The Lock N Load headspace gauge is the best method we've found to extend brass life, improve accuracy and enhance safety. The gauge measures variations in your brass before and after firing or resizing. It allows for comparison between fire-formed brass from your gun and your re-sized brass. Any of five interchangeable bushing are attached to your caliper using the same body as found on our Comparator. This kit comes with five bushings that allow the user to check most bottleneck cases, from .17Remington through the belted magnums. Ackley improved chambers use the same bushing as the parent case.
Product information
Technical Details
Additional Information
ASIN | B000PD5VN8 |
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Customer Reviews |
4.8 out of 5 stars |
Best Sellers Rank | #177,757 in Sports & Outdoors (See Top 100 in Sports & Outdoors) #1,240 in Gunsmithing Tools |
Date First Available | April 25, 2007 |
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Important information
Legal Disclaimer
This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
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Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers like the quality, ease of use, measurement, value, and accuracy of the product. For example, they mention it works great, it's simple to set up, and it provides very accurate measurements. That said, they say it'll help you set up your dies and is a great buy.
AI-generated from the text of customer reviews
Customers are satisfied with the quality of the product. They mention it's a very useful product, works great, and is a good tool to have around. Customers also say it'll be a great addition for serious ammo reloaders.
"...Hornady makes good quality and it works well for me. I do recommend this product." Read more
"This set of headspace gauges are great. They're cheap, they work and they're light...." Read more
"...A very useful product, quality manufacture, with clear easily followed instructions. What else can you ask for??" Read more
"For the serious shooter these are well designed to help determine the proper head spaceing when reloading your bullets." Read more
Customers find the product simple to use and clear in instructions. They also say it helps set up their case trimmer and figure out what cases need full case resizing.
"I like this tool. Easy to use and very accurate. I use it in conjunction with Hornady's caliper anvil...." Read more
"...It is pretty quick and easy but I think a few changes would make it even better...." Read more
"...A very useful product, quality manufacture, with clear easily followed instructions. What else can you ask for??" Read more
"...Once you figure it out they are awesome and quick! Helped me set up my case trimmer and figure out what cases needed full case resizing or just..." Read more
Customers find the measurement of the product to be accurate, simple, and consistent. They also say it's great for measuring headspace, simplifies headspace measurements, and works perfectly. Customers also mention that the set of headspace gauges is great, functional, and covers many calibers.
"This set of headspace gauges are great. They're cheap, they work and they're light...." Read more
"Easy to use. Provides more precise measurement for setting dies for shoulder bump when resizing." Read more
"Product allows user to measure relative headspace from a neck datum to case head on almost all cases." Read more
"Simplifies headspace measurements. Recommended" Read more
Customers appreciate the value of the reloading tool. They say it's an inexpensive, easy tool that works well.
"Great price." Read more
"This set of headspace gauges are great. They're cheap, they work and they're light...." Read more
"...unfired case and the Hornady headspace gage fills that need at a reasonable price, plus it comes with the most popular inserts (for checking datum)..." Read more
"Great price seem to work pretty good too. Must have for long range shooting" Read more
Customers like the accuracy of the product. They say it's a great tool for precision reloading, and range time showed huge gains in accuracy after separating fire formed from full case resized brass. Customers also say it is a must for handloading with any precision, and a necessary tool to fine-tune re-loads.
"I like this tool. Easy to use and very accurate. I use it in conjunction with Hornady's caliper anvil...." Read more
"...This set will pay for itself in brass life and also help with accuracy. I should have bought it years ago...." Read more
"...Range time showed huge gains in accuracy after separating fire formed from full case resized brass!" Read more
"It is a necessary tool to fine-tune our reloads, if you are into precision shooting." Read more
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Just a note: These are really headspace comparitors. Don't take the value they give you as gospel and don't compare the values to SAAMI specs. I measured a bunch of Federal Match rounds and if these measurements were absolute, the match rounds would be out of spec! I did find that comparing the measurements of my reloads to the Federal match rounds was a breeze and was very useful.
This product provides an excellent method to establish the proper amount to resize your bottleneck cases for your particular rifle and eliminate excessive resizing resulting in work hardening of the case shoulder. It is also easily repeatable. This is the best method to extend the life of your cases or minamize the number of times, or frequency, you need to anneal your cases.
The instructions provided are clear and easy to follow. I use this product to check every case I resize to ensure they are all have their shoulder set back the same amount. A very useful product, quality manufacture, with clear easily followed instructions. What else can you ask for??