Hornady Lock-N-Load Comparator Body

This is a worthwhile tool for serious reloaders. It does improve the consistency of reloaded ammo and therefor improves accuracy. The tool is simple to use and only takes a few minutes to check bullet seating depth on 50 rounds, and the cost is well worth the improved accuracy of my reloads. Combined with the Hornady Concentric Tool this is a winning combination. There are a lot of inconsistencies in bullet ogives and noses, reloading dies, presses, etc, and these two tools eliminate that. Back in the day us Benchrest competitors used custom made reloading dies that were a direct mirror of our chambers in our rifles. These tools are the closest to achieving that perfect fit of the cartridge to the chamber using store bought equipment. .

Great product! Great price!

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.

I've only used it on .308 ammo but it came with 7 different bushings. It works as described.

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.

Simple and precise equipment!

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.

Exactly what I was looking for. Using it with the other Hornady tools for reloading