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March 30th, 2024

Saturday at the Movies: Creedmoor Sports InfoZone Showcase

Creedmoor Sports Infozone bill gravatt reloading barrel tech tip

Creedmoor Sports Infozone bill gravatt reloading barrel tech tipCreedmoor Sports has recently expanded and updated the Creedmoor Sports InfoZone. This web resource contains valuable information about reloading, rifle maintenance, marksmanship skills, and gunsmithing. In addition, the InfoZone has Competition Reports, numerous Gear Reviews, and general Shooting Sports News.

For this Saturday Showcase, you’ll find five InfoZone Videos hosted by Bill Gravatt, President of Creedmoor Sports. There are over 85 other videos on the Creedmoor Sports YouTube Channel. Bill Gravatt is an expert on reloading processes and gear. He developed many of the popular tools for Sinclair Int’l, and now he directs operations for Creedmoor Sports.

Reloading Procedures with Bill Gravatt

Here are five helpful videos Bill Gravatt created for the Creedmoor Sports InfoZone. These videos cover a variety of essential processes for handloading. In addition Bill Shows how to find the exact twist rate in your rifle barrels.

How to Determine a Barrel Twist Rate

Bill Gravatt of Creedmoor Sports demonstrates an easy method to determine your barrel’s twist rate. Knowing the twist rate is essential to selecting suitable bullets for your discipline.

How to Seat Bullets with Inline Press

Many top Benchrest and F-Class shooters favor inline presses for bullet seating. With good hand dies (such as Wilson) and a inline Arbor press (such as a 21st Century), you can get great results with super seating depth consistency and very low run-out.

How to Trim Cases with L.E. Wilson Trimmer

There are many ways to trim cartridge brass. If you need to trim hundreds of cases it may pay to have a dedicated power trimmer. However, for most rifle shooters, a good hand trimmer will do the job very well. We regularly use a Wilson trimmer to trim our cases, as demonstrated in this video.

How to Clean Cartridge Cases

Bill Gravatt Creedmoor Sports cleaning cases

It is important to regularly clean cartridge brass. There are many different means. Wiping the outside with a solvent is a good start. For more thorough cleaning inside and out tumbling or wet-tumbling will do the job. After tumbling in media, you should always check the primer pockets and flash holes before loading.

How to Clean Reloading Dies

Cleaning your reloading dies is something that many who reload often neglect. In this 60-second Tech Tip, Bill Gravatt provides some tips on cleaning your reloading dies.

BONUS Video: How to Fine Tune Seating Depth

Now that you’ve learned Reloading Basics from the Creedmoor Sports videos, here’s a great video from our friend Keith Glasscock that will help you get optimal results when seating bullets. Keith is one of America’s greatest F-Class competitors, with multiple podium finishes at F-Class National Championships. With over 213,000 views, this is the most popular video Keith has created for his Winning in the Wind YouTube Channel.

About Creedmoor Sports — 45 Years of Service to Marksmen

Creedmoor Sports Bill Gravatt reloading infozone

For the past 45 years, since 1979, Creedmoor Sports has been supplying quality equipment and supplies to avid shooters in a wide variety of disciplines: Rimfire, F-Class, PRS/NRL, Silhouette, Service Rifle, Benchrest, and more. Specializing in competitive centerfire, smallbore, and air rifle accessories, as well as reloading components and tools, Creedmoor Sports seeks to provide its customers with the right gear to help them achieve their personal shooting goals.

Permalink - Videos, Bullets, Brass, Ammo, Gear Review, Reloading No Comments »
March 30th, 2024

$99 K31 Rifle Hits Steel Bison at 2240 Yards — with Iron Sights

World Record Iron Sights K31 Buffalo bison Utah
World Record Iron Sights K31 Buffalo bison Utah
Magnified 8X view looking down-range at bison (American buffalo) target.

Could You Hit a Steel Bison at 2240 Yards (1.27 miles) … with Iron Sights?

Impossible as that may seem, that’s exactly what Ernie Jimenez did some years back at the North Springs Shooting Range in Price, Utah (elevation 5,627′). Shooting a milsurp Swiss K31 rifle chambered for the 7.5×55 Swiss round, Jimenez placed four hits on a three-foot-high, bison-shaped steel target placed a staggering 2240 yards from the firing line. Not bad for a rifle which Jimenez acquired many years ago for just $99.00. Of course he did have plenty of misses along the way (and Ernie even managed to hit the plate shielding his camera).

This video is set to start half-way through, when the shooter starts making hits:

The whole process was recorded on video and posted on YouTube. The Long-Range Shooters of Utah say this is an official Guinness World Record for longest shot with iron sights. We can’t confirm that, but it still is an impressive feat. Jimenez had to compensate for a huge amount of bullet drop. His K31’s long-range military sights helped but he still had to aim well over the pink bison. To see how far that target is, watch the video at 14:30 — a camera at the firing line zooms all the way back until the bison is nothing but a tiny dot. The photo below show the target at 8X magnification, but it’s still barely visible.

Here’s the unmagnified, “naked-eye” view from the firing line. Can you see a pink buffalo at all?
World Record Iron Sights K31 Buffalo bison Utah

Bullet Dropped Over 400 Feet along its Trajectory
To roughly gauge the bullet drop, we took a 7.5x55mm Swiss load from the Hodgdon Reloading Center. With max “book” load of H4350, a 168gr Sierra HPBT has a muzzle velocity of 2524 FPS. According to JBM Ballistics, that bullet will drop over 400 feet during its flight. That’s lot of hold-over! Assuming a 100-yard zero, 59° temp, and 5,600′ altitude, JBM calculates that the drop to 2250 yards is a stunning 210.9 MOA — that’s 4969.9 inches, or 414.15 feet!

World Record Iron Sights K31 Buffalo bison Utah

In the first part of the video, shooter Ernie Jimenez talks about his hand-loads and his K31 rifle. Here is an example of the distinctive straight-pull K31 (Karabiner Model 1931). Image courtesy AIM Surplus.

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