5.6x50R (magnum)

Bavarianbrit

Well-Known Member
Hi,
My neighbour has this calibre and the RWS ammunition is eye wateringly expensive. The dies cost 110 euros as they are a special run.
So after a search though the net I tried reloading his RWS cases using my .222 Rem dies, it surprised me that it worked so well, the cases are longer but as they were fired in his gun I just lubed the necks then neck sized them with the .222 die using some spacing washers to take up the extra length and I seated the bullets with the .222 seating die without the washers. They fitted easily into his combination gun and closed up with the same feeling as was with his RWS new ammo. Now he needs to shoot a group to test them.
 
I just did a comparison of case dimensions from Saami & RWS.
.223 case is 1.438" from base to shoulder
5.6x50 is 1.351" from base to shoulder
.222 Remington is 1.264" from base to shoulder
Funny that each one seems to have an identical case form except that each one is 0.087 thou different in their length.
The neck lengths differ too .223 = 0.203", 5.5x50R = 0.260" & .222 Rem = 0.312-3" thou, hence its better (for accuracy) performance of the .222 Rem as it guides the bullet into the lands for a longer millisecond.
A bit anal all this I know but from the logic it appears that a .223 die will also load a 5.6x50 case with just a 0.087" thou washer dropped over the case to function as an end stop onto the die at the top of the ram stroke.
Reloading is a hobby that just keeps on giving.
 
Shame you're not in the UK at the moment as Holts have two lots of that caliber coming up for sale:
160 newish RWS
100 older RWS
They've had the rimless version for sale in the past also, but I like your solution, creative & yet simple, it's a great answer to the question "why would I reload?". There are going to be times when it might be your only option.
 
I gave up my UK FAC last year as it seemed redundant used it once every few years, this calibre was not on it so Holts would not sell to me methinks. In Germany I can buy any rifle calibre even if I do not have one on my cert as I might have borrowed someone's rifle for a hunt.
But it was an interesting exercise just to see how one calibre got morphed into 5.56 and 5.6x50 and .222 rem mag. It seems like almost a copy/paste exercise by the various companies so how much real development work was done after Mike Walker developed the .222 Rem, I wonder.
Here is a comparison the 5.6x50 is on the left the .223 on the right using the shoulders as the datum line both run 23 degree off that so they ought to sit up there the same in the chambers.
 

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Here is Mikes 2013 obituary.
Legendary firearms engineer Merle "Mike" Walker passed away on March 6, at the age of 101. Walker was one of the most important gun and cartridge designers of the 20th Century, and he also was a leading proponent of benchrest shooting. Mike worked for Remington Arms Company for 37 years, as a lead designer and engineer. While at Remington, Mike created many of Remington's most popular bolt action rifles. For many years, Mike served as Director of Research and head of the Custom Shop at Remington's, Ilion, NY facility.
Mike led the development of many important Remington rifle designs, including the Rem m700, Rem 40X, Rem m721, and Rem m722. Walker held numerous patents, mostly for trigger designs.
"Without a doubt, the Remington Model 700 is the most popular commercial, high-power, bolt-action rifle in the world. The Model 700 is actually a product-improved Model 721 and Model 722 bolt-action rifle, the brain-child of Merle 'Mike' Walker and his Remington design team in the 1940s." - Roy C. Marcot, The History of Remington Firearms
Mike was a major pioneer in modern cartridge design - he was the originator of the .222 Remington and the 6mm Remington Int'l rounds. According to Guns & Ammo: "Long-time Remington employee and benchrest competitor Mike Walker, who headed up the M722 design team, is largely credited with the development of the .222 Rem". The .222 Rem (aka "Triple Deuce") dominated short-range Benchrest competition until the advent of the PPC cartridges.
Walker also worked with Jim Steckl on the .30-cal wildcat that eventually evolved into the 6mm Bench Rest Remington. This cartridge demonstrated the accuracy and efficiency of the "short, fat" case design. When brass was eventually produced for the 6mmBR Rem, Mike convinced Remington to produce a run with a small primer pocket. Thanks to these pioneering efforts by Walker and Steckl, we now have the ultra-accurate 6mmBR Norma (with a small primer pocket), and the 30BR wildcat.
Mike was one of the "founding fathers" of the International Benchest Shooters (IBS), and he was in the early IBS leadership group. He was a talented (and dedicated) benchrest shooter. Remarkably, Mike shot in the 2010 IBS Nationals at age 99. Mike also played a key role in the creation of Precision Shooting Magazine. Still engaged in his passion for gun-building and firearm design, he worked in his shop even at the age of 101. He passed in Elizabeth Hospice on March 6, 2013 after hip replacement surgery.
IBS President Jeff Stover tells us: "The term 'living legend' is used in many sports and endeavors. Rarely, though, is that term used as accurately as when referring to Mr. Merle 'Mike' Walker. He developed the Rem 700, he helped invent the button rifling process and many other firearms innovations. Probably the last time he shot in competition was at the 2010 IBS Group Nationals at Weikert, Pennsylvania. He got around quite well - even at 99 years of age! He shot an older rifle in a beat-up stock, but he was there on the line with the rest of us. During one match Mike was having some problems and it was close to cease fire time. Our range officer could see that everyone else had finished. Mike kept shooting, trying to get five on paper. The range was quiet except for the reports from Mike's rifle. When it was clear that all five were on paper, 'cease fire' was finally called. There were no questions as to what happened - all of us on the line realized it was a tribute to probably the only real Living Legend that any of us would meet, let alone shoot with…."
Mike Walker will be missed. As James Mock has written: "We in the shooting community are truly diminished. Mike was an icon of the innovative spirit of America." Mike Walker was a true pioneer who has left an enormous legacy to all those engaged in the "pursuit of accuracy". He was a lifelong member of the National Rifle Association and the Campfire Club of America and graduated from Iowa State University in 1934 with a degree in Mechanical Engineering. He was also credited in Cambridge Whos Who in December 2012.
Merle Hamilton "Mike" Walker married Olive Marie Frink on July 17, 1935 in Ames, Iowa. Merle and Olive Walker had two daughters, Janet DuBane and Eleanor Walker. Eleanor died in 1999. Olive was a crack benchrest shooter as well who died in 1990. Merle then married Kathryn Horne "Sue" LaFrance on February 8, 1992 in Hendersonville, North Carolina. "Mike" is survived by his daughter Janet Walker DuBane, his wife Sue, her daughter Linda LaFrance and her son Peter LaFrance. If you wish to honor his memory, his favorite charities were Paralyzed Veterans of America or the St. Labre Indian School.
Technical Content from AccurateShooter.com copyright © 2013, All Rights Reserved, used with permission.

Published in Anchorage Daily News from Mar. 31 to Apr. 1, 2013.
 
Here is a comparison drawing of the case sizes of .223 to 5.6x50 & 5.6x50R for anyone that might be interested.
 

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Arrived a few days ago a set of Hornady custom dies in .223 that I bought new cost me only 55 Euros and I have just done a loading session on the 5.6x50R and they came out looking like new produced RWS ammo. That Hornady seater is a real beauty. And the .223 dies work well, if you are loading cases to go back into the same chamber that they came out of.
 
The .223 die does not go all the way down to the case head when it sets the shoulder bump, but by using a .38/.357 sizing die with the decapping stem removed I can then get the final few thou at the head sized back to the correct diameter as 5.6x50 & 50R and the .38 cases have the same diameter.
 
I just use a set of RCBS 5.6x50R dies. It makes life very easy.
I have the 2 die sets and as I was loading at first for my neighbour so I was loath to shell out 130€ just for the few rounds per year that he needed so I came up with this working solution.
 
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