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July 13th, 2013

6MM Creedmoor Brass Now Available at Good Prices

You’ve probably heard of the 6.5 Creedmoor, an excellent round for High Power and tactical applications. Well there’s a 6mm (.243) version of this cartridge — the 6mm Creedmoor. It has the same external dimensions (other than neck diameter) as the 6.5 version, but it lets you shoot the High-BC 6mm bullets at higher velocities. With a long barrel, you can push 105gr bullets an honest 3070-3100 fps with this cartridge. The 6mm Creedmoor has a large primer pocket and large flash hole (unlike Lapua’s 6.5×47 which has a small primer pocket, and small flash hole — like the 6mmBR).

accurateshooter.com GA Precision 6mm Creedmoor 6.5 brass cartridge6mm Creedmoor Brass
If you’re interested in the 6mm Creedmoor, Hornady-brand brass is available right now at reasonable prices. Yesterday, GA Precision received 110,000 pieces of 6mm Creedmoor brass. Prices are:

$65.00 for 100 pieces
$325.00 for 500 pieces
$620.00 for 1000 pieces

That works out to sixty-two cents per unit if you buy 1000 cases. CLICK HERE to Order.

We have not tested the 6mm Creedmoor cartridge yet, but we know some shooters have had good luck with it. In design, the 6mm Creedmoor is quite similar to the 6XC, which is a proven High Power cartridge that has won many championships. If you want a mid-size 6mm cartridge, with brass that doesn’t cost $1.00 per case, the 6mm Creedmoor may be an option to consider. GA Precision says this about the cartridge: “The 6mm Creedmoor is an ideal cartridge for large-platform, semi-auto rifle for shooters who wish to utilize the long, high-BC modern 6mm projectiles. Compared to the .243 Winchester, the 6mm Creedmoor case is just under .130 of an inch shorter, perfect for the confines of a short-OAL AR-style magazine. This is an ideal cartridge for competitive shooters — charges easily reach 3050-3100 FPS while coming closer to the 100% volume capacity for powder charge, often resulting in lower standard deviations recorded.”

Permalink Bullets, Brass, Ammo, New Product No Comments »
July 13th, 2013

New Primer Pocket Plugs for H20 Case Capacity Measurements

When developing loads, it is important to know the true internal capacity of your cases, both fired and “as FL-sized”. In particular, when using the QuickLOAD program, it is vital to determine true case capacity. The default case capacity values listed by QuickLOAD may be off half a grain (or more) because brass from different manufacturers can vary considerably in capacity. Case capacity is a very important variable that will affect the pressure of a load and the velocity of your bullets.

To determine the true internal capacity of your cases, first weigh an empty cartridge case, then fill the case with water (all the way to the top of the neck) and weigh the case again. The difference in weight is your H20 capacity in grains. But how do you keep the H20 from flowing out the bottom? When measuring fired, unsized cases, you can simply leave the spent primer in the pocket. However, if you want to measure new brass or “as-FL sized” cases that have been deprimed, you’d have to insert a spent primer to “stem the tide”. Until now that is… 21st Century Shooting has come up with a simple tool that plugs the bottom of the case so you can measure H20 capacity with ease.

H20 Case Capacity measurement tool plug

When we saw 21st Century’s Primer Pocket Plug we thought “That’s smart — why didn’t someone think about that a long time ago?”. This handy “end-cap” lets you quickly measure multiple new brass cases or deprimed FL-sized cases so you can get an average H20 capacity. The primer pocket plugs are NOT case-specific (they feature an O-ring that fits the pocket). One version will work with all small-primer-pocket cases, while another works with all large-primer-pocket cartridge types. Price is $19.95 for either small-pocket or large-pocket version.

NOTE: If you want to measure H20 capacity on fired, sized brass, but don’t want to shell out the money for the tool (or re-insert a spent primer), here’s a simple suggestion. When you size your case, first remove the decapping rod from the die. Then you can FL-size the case without removing the primer. Of course, you will eventually have to knock the primer out, and that requires putting the decapping rod back in the die and running the case through a second time. To avoid that hassle, the Primer Pocket Plug may be worth the $19.95 over the long haul. We just ordered one of each (small and large).

Product Find by EdLongrange. We welcome reader submissions.
Permalink Gear Review, New Product, Reloading 8 Comments »