August 14th, 2020

CMP Reopens Air Gun Competition Centers to Public

CMP's South Competition Center Alabama North Competition Center Ohio Covid-19 reopen

Good news — the CMP’s North Competition Center in Ohio and South Competition Center in Alabama will both reopen August 17, 2020. The Civilian Marksmanship Program (CMP) invites air rifle and air pistol shooters back to North and South Competition Centers by appointment. To safeguard visitors, fewer persons will be allowed on the firing line, and there will be new protective practices for staff and guests.

CMP's South Competition Center Alabama North Competition Center Ohio Covid-19 reopen

Story based on Report By Ashley Brugnone, CMP
Anyone is welcome to the ranges for practice or friendly competition on the firing line, though for the foreseeable future, air gun range access will be by appointment only. Guests will be allowed two-hour time slots, with no more than 25 firing points in use at a time. To set up an appointment for your spot on the firing line, please call Catherine Green at 419-635-2141, ext. 704.

CMP's South Competition Center Alabama North Competition Center Ohio Covid-19 reopen

Measures to ensure social distancing and cleanliness for visitors include:

— Rifles disinfection between uses
— Masks required while within the facility (can be taken off on firing line)
— Area disinfection by guests before and after use
— Firing point disinfection by staff after use
— Removal of bleachers within the ranges with limited chairs for parents/guardians
— Parents/guardians not firing will be required to wear a mask at all times
— Common Areas and Classrooms will be off limits
— Changing Area within the restrooms will be closed

About the CMP Competition Centers

CMP Competition Centers Information Page

CMP's South Competition Center Alabama North Competition Center Ohio Covid-19 reopen

Both the South Competition Center in Alabama and the Gary Anderson CMP Competition Center in Ohio boast 80 firing points with electronic targets. Each firing point contains a personal monitor that instantly displays shot scores. LED screens above the firing points show scores for spectators.

The South Competition Center includes the CMP South Store stocked with equipment, accessories, and memorabilia. Open to the public, year-round, visitors of virtually any age and experience levels are welcome to try their hands at air rifle or air pistol shooting.

The Gary Anderson CMP Competition Center features Olympic and other memorabilia from celebrated American marksman, Gary Anderson. The facility is open to the public all year long, with access to the air gun range for practice, competition or fun shooting.

CMP's South Competition Center Alabama North Competition Center Ohio Covid-19 reopen

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August 14th, 2020

Yes Both Velocity and Pressure Can Vary with Primer Choice

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.

BE SAFE: Glen Zediker recommends decreasing your load ONE FULL GRAIN when changing to a different primer type, one that you haven’t used before.

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.

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