Can you use 556 in a 223

So does Hornady, from a gr. NTX bullet at 3, fps to a gr. Federal catalogs a dozen. Nosler Partition at 3, fps and a gr. Trophy Bonded Tip at 3, Swift loads a gr. Black Hills Ammunition rips tons of ballistic gelatin refining. Two-two-three acolytes dig out ballistics charts. Power-Point — hardly the frothiest. Live The Armory Life. The latest content straight to your inbox plus an automatic entry to each of our monthly gun giveaways!

A counterpoint: Bullet weight and diameter bow to velocity in energy calculations, but can figure heavily in killing effect. Arguably, precise shot placement matters most with small bullets. The wide range of. Nosler advises a 1-in spin for bullets no longer than its grain Partition. In my tests, 1-in bores kept groups tight with bullets as heavy as 62 grains but spun grain BTHPs too slowly. A 1-in-8 spin is claimed to stabilize BTHPs to 80 grains, and shoot bullets as light as 50 grains accurately.

As always, test out your preferred load in your gun to check results. So there you have it, the story of the. Obviously, the round and the AR combo is one of the most popular in American today, due in no small part to the exceptional performance of both. Much like the 7. Are they the same, or are there significant differences.

And now you know what you can shoot in which! Go to forum thread. These articles are considered to be suggestions and not recommendations from Springfield Armory. The views and opinions expressed on this website are those of the authors and do not necessarily reflect the views and opinions of Springfield Armory.

Over the past 40 years, Wayne van Zwoll has published 16 books and nearly 3, magazine articles on firearms, optics, ballistics and big game hunting. A competitive rifleman with two state smallbore titles, he's served as a coach and volunteer Hunter Education Instructor in five states.

He has hunted worldwide, worked as a big game guide in the West and, with African Professional Hunters, hosted more than a dozen safaris. He's found time to run marathons and earn a Ph. Wayne lives in rural Washington state. The latest content straight to your inbox plus an automatic entry to each of our monthly giveaways! No account? Create One. Have an account?

The biggest problem with these differences is when firing a 5. Due to the longer throat that the NATO chamber employs this combination will cause a chambered weapon to run at approximately 65, psi or more. This is NOT safe and will cause primers to back out, or worse, cause harm to the operator, the rifle, or both.

The reverse of this is firing a Rem cartridge in a 5. However, there are many other factors that determine what is a safe round to chamber in a particular firearm, and although the case size is identical on these two rounds they are not interchangeable. Chamber The 5. This means that the pressure within the chamber that is produced when firing can be dramatically different for these two rounds. Pressure Due to the differences in the chamber described above, a.

However, a 5. This over-pressuring of the chamber can lead to all sorts of dangerous malfunctions and should be avoided at all costs. Bottom Line? Less than. Some cases hold less water than 5. Which would indicate just the opposite of your claim.

Disclaimer: I am no expert. Do your own research. I the end you are solely responsible for the safety of your hand loads. Where is this 0. Headspace gages measure from the bolt face to a datum on the case.

I do not see this datum line on any of the diagrams?? If the pressures are the same, why does factory mil spec 5. It is on page 68, which is actually the 80th page in the PDF document. It appears that the datum is the location on the shoulder at which the diameter is 0. In the chamber drawing located below the cartridge drawing , the dimension from the breech face to that datum line is listed as 1. I thought this also. Lots of the older enthusiasts would argue when you would bring this up or at least give you that noob look.

Nice article. Thanks for taking the time to research and write it Gavin. Of the cartridges tendered, the. The FN-created cartridge was named 5. Daniel, what ammo are you referring to? What barrel length are you referring to? You need to be more specific about the ammo and weapon that you are talking about. CIP does not distinguish between and 5.

I favor the 6mm x. As I read your article the true differences in all the aforementioned casing is minor. Thus the only specification for wildcat load production is the casings alloy composition.