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August 4th, 2026

How To Craft a Modified Case for Measuring Length to Lands

Hornady Stony Point Tool OAL O.A.L. gauge bullet seating length ogive checker

Our friend Gavin Gear has crafted an excellent video showing how to make a threaded Modified Case for use with the Hornady Lock-N-Load Overall Length Gauge. You can watch Gavin make a Modified Case start to finish in the video below:

Video Shows How to Drill and Tap Modified Case

Gavin has some clever tricks. First he uses a sizing die to hold the cartridge case during the threading process. Second he uses two drill bits in sequence — a smaller bit to ream out the primer pocket, and then a larger “M” bit to increase the hole diameter before threading the brass. Finally he leaves the threading tap IN the brass, locks the tailstock, and then “gently pulls on the quill” to remove the brass from the die held in his lathe (See 5:46 timemark).

Modified Case Gavin Gear Ultimate Reloader

Get the Correct 5/16″-36 RH Tap
Unfortunately, Hornady has selected an uncommon thread type for OAL Gauges. You probably won’t be able to buy the correct 5/16″ – 36 RH HSS Tap at your local hardware store. However you CAN order this special tap from Amazon for $9.99.

Modified Case Q & A — TECH TIPS

Why do I need a Modified Case?
Every serious reloader should have a Modified Case for each cartridge type they shoot. The reason is that this allows you to get very precise measurements of the length-to-lands in your chamber. When used with the Hornady OAL Gauge, with some practice, you should be able to get repeatable length-to-lands measurements within about 0.0015″. We generally do 4-5 measurements with the OAL Gauge and usually 3 or 4 will be “on the money”. NOTE: We recommend a gentle, easy pressure on the plastic pusher rod. Don’t push too hard or you will jam the bullet hard into the lands, which produces inconsistent results.

Can’t I Just Buy a Modified Case?
Hornady makes a variety of Modified Cases sold on Amazon and through retailers such as Midsouth. While Hornady makes modified cases for many standard cartridges, if you shoot a wildcat such as the 6mm Dasher or .284 Shehane, you’ll need to create a custom modified case. And even if you shoot a standard cartridge such as the .308 Win, you can get more consistent measurements with a custom Modified Case.

If you do decide to make your own modified case, you’ll want to start with a case that’s been fired in your rifle. That way you get the best fit to YOUR chamber. Also, you won’t need to expand the neck to provide bullet clearance. Then you need to drill out the primer pocket and tap the base of the case to match the threads on the Hornady OAL Gauge tool. Make at least two modified cases, as you’ll probably misplace one at some point.

MORE INFORMATION: Want to learn more? We published a much longer story in which Erik Cortina explains in greater detail how to made the Modified Case. That article illustrates the 5/16″ – 36 RH HSS Tap required and shows how to set up the lathe to drill and tap your case. If you are serious about making your own Modified Cases, you should Read the Full Article.

Permalink - Videos, Bullets, Brass, Ammo, Reloading, Tech Tip No Comments »

August 4th, 2026

Windflag Videos Show Wind Variations in Slow-Motion

Photo of Aussie Wind Flags courtesy BRT Shooters Supply.

A while back our Aussie friend Stuart Elliot of BRT Shooters Supply filmed some interesting videos at the QTS range in Brisbane, Australia. Stuart told us: “I was shooting in an Air Gun Benchrest match here in Brisbane, Australia. I finished my target early and was awaiting the cease fire and took a short, slow-motion video of windflag behavior.” You may be surprised by the velocity changes and angle swings that occur, even over a relatively short distance (just 25 meters from bench to target).

Here are windflags in slow motion:

The flags show in the videos are “Aussie Wind Flags”, developed by Stuart Elliot. These are still produced in Australia, and are now available through BRTFlags.com.

Here is a video in real time:

Stuart says this video may surprise some shooters who don’t use windflags: “Many people say the wind doesn’t matter. Well it sure does — whether for an airgun at 25 meters or a long range centerfire at 1,000.” This video illustrates how much the wind can change direction and velocity even in a small area.

Permalink - Videos, Competition, Gear Review No Comments »

August 4th, 2026

Cardboard Target Cones — Handy, Foldable Standing Targets

Sometimes you have an opportunity to go shooting but you’re a long way from home and don’t have your regular tall target frame(s). Here’s a handy product — a 28″ tall foldable cardboard cone — you can easily carry in your vehicle and deploy any time.

With this innovative Target Cone you can easily carry a target-holder wherever you go. The Target Cone from Re-Nine Safety transports flat so it can be easily stowed in the trunk of your car (or even under a seat). When you’re ready to use it, simply fold the flaps to create a self-supporting cone with pre-printed targets on one side. Place a rock on the base to hold it steady. The Target Cone can be used by itself or, as shown below, you can attach other targets, such as Re-Nine’s Silhouette Target (below right).

Re-9 Re-Nine Safety Target Cone Carboard holder support

We think this is a great innovation. Keep a couple Target Cone flats in the back of your car or truck and you’ll always have a target support. For spur-of-the-moment range sessions, this is much easier than toting around a big target frame. The Re-Nine Safety Target Cones come flat, fold together and interlock forming a sturdy 28″ tall stand-alone target. These are sold as a 5-pack for $25.00.

Re-9 Re-Nine Safety Target Cone Carboard holder support