October 5th, 2018

Changing Primer Types Can Alter Load Velocities and Pressures

Primer Wolf CCI Federal Muzzle velocity FPS reloading

We are often asked “Can I get more velocity by switching primer types?” The answer is “maybe”. The important thing to know is that changing primer types can alter your load’s performance in many ways — velocity average, velocity variance (ES/SD), accuracy, and pressure. Because there are so many variables involved you can’t really predict whether one primer type is going to be better or worse than another. This will depend on your cartridge, your powder, your barrel, and even the mechanics of your firing pin system.

Interestingly, however, a shooter on another forum did a test with his .308 Win semi-auto. Using Hodgdon Varget powder and Sierra 155gr Palma MatchKing (item 2156) bullets, he found that Wolf Large Rifle primers gave slightly higher velocities than did CCI-BR2s. Interestingly, the amount of extra speed (provided by the Wolfs) increased as charge weight went up, though the middle value had the largest speed variance. The shooter observed: “The Wolf primers seemed to be obviously hotter and they had about the same or possibly better ES average.” See table:

Varget .308 load 45.5 grains 46.0 grains 46.5 grains
CCI BR2 Primers 2751 fps 2761 fps 2783 fps
Wolf LR Primers 2757 fps 2780 fps 2798 fps
Speed Delta 6 fps 19 fps 15 fps

You can’t extrapolate too much from the table above. This describes just one gun, one powder, and one bullet. Your Mileage May Vary (YMMV) as they say. However, this illustration does show that by substituting one component you may see significant changes. Provided it can be repeated in multiple chrono runs, an increase of 19 fps (with the 46.0 grain powder load) is meaningful. An extra 20 fps or so may yield a more optimal accuracy node or “sweet spot” that produces better groups. (Though faster is certainly NOT always better for accuracy — you have to test to find out.)

WARNING: When switching primers, you should exercise caution. More speed may be attractive, but you have to consider that the “speedier” primer choice may also produce more pressure. Therefore, you must carefully monitor pressure signs whenever changing ANY component in a load. Glen Zediker recommends decreasing your load ONE FULL GRAIN when changing to a different primer type, one that you haven’t used before.

Permalink Bullets, Brass, Ammo, Reloading 8 Comments »
October 5th, 2018

Mount Press ABOVE Your Bench with Bench Topper

Berry's Bench Topper Reloading Platform
Berry’s unique, all-metal Bench Topper lets you place a reloading press above your bench surface, clearing valuable space in your reloading area.

The Bench Topper, from Berry’s Manufacturing, is a sturdy platform that holds a loading press and storage bins in a raised position above your bench — effectively creating additional room for scales, trimmers, and component storage below. The $114.66 Bench Topper (Midsouth item 037-00191) can bolted to your bench, or it can be secured with C-Clamps (for easy removal). Do you load at the range? The Bench Topper can be easily transported in your vehicle, providing a handy platform for your press and powder measure.

Bench Topper Specs:

Top Plate:
6 x 20 x 1/4″

Bottom Plate:
10 x 20 x 1/4″

Height: 11.5 Inches

Weight: 12.5 Pounds

Berry’s Bench Topper is crafted from CNC-machined aluminum and powder-coated black for durability. It comes with two aluminum hangers for storage bins for bullets or brass. All fasteners are recessed for a clean work surface. NOTE: The Bench Topper must be assembled by the purchaser, and YOU MUST DRILL YOUR OWN HOLES for installation of your press or other hardware. This requires a few minutes of initial set-up time, but this allows a secure, custom installation for any brand of reloading press.

Product Tip from EdLongrange. We welcome user submissions.
Permalink Gear Review 2 Comments »
October 5th, 2018

Firearms Industry Jobs — NSSF Career Center Listings

NSSF Jobs Database firearm industry employment listings

Looking for a good job in the firearms industry? The NSSF has you covered. The NSSF Career Center offers up-to-date job listings, powerful search features, and a mobile-friendly interface. It’s easy to upload your Resumé, and the Job Alert feature can send you new listings via email as soon as they post. Visit jobs.nssf.org for current employment opportunities in the shooting, hunting and outdoor industry.

CLICK to FIND Firearms Industry Employment at Jobs.NSSF.org »

Check out the latest job listings on the NSSF Firearms Industry Jobs Website
There are some interesting opportunities right now. Both Hornady and Smith & Wesson (American Outdoor Brands) are looking for engineers. Do you enjoy social media? Well Swarovksi Optik needs a Media Relations Specialist. The Rocky Mountain Elk Foundation is seeking a Regional Director, and Century Arms needs a Sales Manager.

Click to See All Current Job Offerings:
NSSF Jobs Database firearm industry employment listings

Permalink News No Comments »