







📏 Reload Like a Pro: Precision Meets Speed in Every Round
The Hornady Lock-N-Load Comparator Body is a steel reloading tool designed to measure bullet seating depth from the ogive to the base of loaded rounds, ensuring superior consistency and precision. The kit includes 7 caliber-specific inserts (.224 to .308) and an Allen wrench, easily attaching to calipers for quick, repeatable measurements. Trusted by reloaders to reduce variation and improve ammunition performance, it’s a must-have for serious precision shooters.











| ASIN | B000PD5VLA |
| Best Sellers Rank | #28,332 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #86 in Gunsmithing Tools |
| Brand Name | Hornady |
| Color | Body with 7 Inserts |
| Customer Reviews | 4.8 4.8 out of 5 stars (1,086) |
| Date First Available | April 25, 2007 |
| Included Components | 6 pack Comparators |
| Item Dimensions LxWxH | 7 x 4 x 2 inches |
| Item Package Dimensions L x W x H | 5.83 x 3.54 x 1.61 inches |
| Item Weight | 2.88 ounces |
| Manufacturer | Hornady |
| Material | Steel |
| Model Name | B234 |
| Number of Items | 1 |
| Package Weight | 0.09 Kilograms |
| Part Number | B234 |
| Size | Body with 7 Inserts |
| Sport Type | Hunting |
| Style | Comparator with 7 Inserts |
| Suggested Users | Reloading Equipment |
| Warranty Description | Limited lifetime |
M**C
Reloading tools
A must if reloading, great product
A**A
Very useful tool
If you want to get your reloading to a better level this tool and the overall length gauge are the way to go. Measurements to the ogive give you better consistency in your loads and the tool is very easy to use. Works great and is worth the money spent.
T**S
Great but overpriced for what it is.
It's a super useful tool, but it is only made of small turned aluminum stock for gawds sake. If a China company copied these they'd only cost $10 for the master kit. A CNC matchine can make these in seconds. I won't pay $6 for each additional caliber inserts or $30 for the Shoulder/Chamber comparator as my lathe is almost set up and I will make my own. The product is of great quality and great function, but way overpriced. But where else are you going to get one? EXACTLY. Hornady is Makin a Killin! Seems ANYTHING shooting sports related is a cash cow like OPEC was running the show. I'm a Veteran living on $600/month (every dime saved is significant) and they're pricing people out of the sport/hobby.
N**K
A Must have for Accuracy! 6 month review
If your used to reloading or measuring with a caliper, this tool will not be difficult to use. I have been using it for 6 months and can give a thorough review. The comparator is well made, and the inserts are also solid. With frequent use, it does not show signs of wear. I expect this will last forever if taken care of. The more consistent you can make your rounds the more accurate you will be. There are deviations in bullet length, and this alleviates them by going off the ogive of the bullet. This is a must have if accuracy is your goal at the range.
C**Y
Must have tool for accurate rifle reloads
A load comparator set allows you to get an accurate measurement of your actual rifle round from the base to the ogive of the bullethead, which is more accurate than just measuring the OAL of the round. Due to inconsistencies in bullet head manufacturing you will find differences. By measuring to the ogive and then reloading your bullets using that measurement and the actual chamber measurements of your rifle, you can get a consistent reload with more stable ogive to lands measurements which will improve your accuracy. To do this you need a few tools. The OAL gauge connects to a modified case and allows you to measure the chamber specs of your rifle. You then use those measurements to accurately figure out your riflers preference for your reloaded rounds. The bullets jump to the rifle lands is a very important calculation for accuracy. Too short and the bullet can cock or angle which causes inaccuracy. Too long and the bullet can contact the the lands when fired which can increase pressure in the case which is not only dangerous, but leads to inaccuracy and also an increase in pressure is also not good if you plan on using your cases multiple times. The whole set up for these measurements cost less than $100. The OAL length gauge, an anvil base, comparator set and inserts, headspace gauge kit, and some modified cases in the caliber you need will get you going. You will also need to connect these to your dial calipers, which if you are reloading your own ammo you should already have dial calipers. Is all this really needed? No. You can use a reload manual and get a decent round. If you are really looking for accuracy you can then make different loads in different lengths, and eventually arrive at the same place. But how many rounds did you have to go through for each load before you found nirvana with your load? 10? 50? 75? And this needs to be done for every bullet weight and profile, for each of your rifles. At around $1 a load, this equipment easily pays for itself in bullet development.
P**A
Hornady Lock-N-Load Comparator
If you are here it's because you need this stuff and this kit has what you need
M**K
Works as advertised
I've only used it on .308 ammo but it came with 7 different bushings. It works as described.
D**N
Good seller
Very good product. !
R**.
Very handy tool for making precise measurements
F**.
Livraison rapide et produit conforme ! Merci beaucoup
A**I
Zur korrekten Vermessung einer Patronenlänge ist dieses Teil wichtig. Umfangreiche Aufsätze für verschiedenste Geschoss-Diameter. Deckt fast alle Großkaliber ab. Einfache Handhabung. Zum Thema L6 Patronenlänge, b.z.w. Messung an der Geschoss-Ogive, will ich hier nichts weiter erläutern. Sollte hoffentlich jedem Wiederlader bekannt sein...
B**O
Muy bien hechos y precisos
A**A
Stumento da avere per effettuare delle buone e costanti ricariche di precisione. Il prezzo è buono e il marchio Hornady è garanzia di per sè. Plauso al venditore e ad Amazon, consegna prevista in 4 giorni, effettuata in uno.
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