I realize where you coming from - you signify undesirable information in the final feeling of ALL SR primers - but I actually imagine that Speer is basically only referring to which among their own personal CCI primers will work best with ball powder.  It would be their "magnum" brisance primers (450 BR4 #forty one) rather than their "common" 400 primer.  A thorough reading through of their handbook primer area reinforces this as their mindset.  Speer, a bullet maker is unique in that they've got CCI is definitely an in-household primer - consequently all facts takes advantage of CCI. I'd concur that IMO the seven one/2 just isn't a "magnum" for every se - but I entirely agree along with you that it definitely has enough brisance to have the position accomplished and is particularly accepted by Hodgdon for H-335 et.

The 6mmBR.com Neighborhood isn’t pleased with just “very good accuracy” … but in its place would seem extremely like-minded in the OCD pursuit of perfection, and the web site commonly only listing hundreds observed to make Extraordinary accuracy.

Anybody else agree using this assertion?  I reload equally of Those people calibers. I'm sitting on a pair thousand 6 one/2s, it would be great in order to use them up.

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posted on May perhaps 15, 2018 News Assistance NRA Shooting Sporting activities United states of america DONATE Remington’s one½ pistol primers are rather distinctive on the planet of tiny pistol primers. They're the sole tiny pistol primer I’m conscious of that includes a warning about their use in certain pistol calibers. Most little pistol primers are available in two flavors, typical and magnum, their use generally being customized around what powder a single utilizes.

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Occur to consider it I kind of wish I had retained them and applied them remington 7 1/2 primers for 9mm and 40S&W reloads. With a facet Take note exactly what is the position of your ERML range nowdays?

Remington’s proposed use of the one½ primer indicates a variance in cup thickness or cup energy these which the one½ gained’t handle exactly the same quantity of stress because the 5½, or other models of compact pistol primers that don’t have warnings about applying them especially cartridges.

Quoted: Will be Employed in an AR-fifteen. Like I claimed, I want to shoot them and afterwards swap the bolt and firing pin. I Might be examining for destruction/have on just about every fifty rounds, so I can see what is actually going on to your bolt experience and firing pin as I am going.

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Posted: 9/8/2009 six:13:37 AM EST [#12] I do think the chart is Completely wrong on that time.  Something you understand is the fact that ball powders take a primer with extra brisance - a phrase described as “the shattering result of a high explosive.” Primer brisance typically will depend on the size from the flame that leaps out of your flash-gap after the firing pin whacks the primer cup.  This flame will also be manipulated to previous just remington 7 1 2 primers a little lengthier, by introducing little particles of other flammable materials into the priming compound.  Ball powders rely totally on relatively flame-resistant exterior coatings to manage burning charge.  By definition, these coatings make ball powders more durable to ignite.   Winchester/Olin was the leader in ball powder technology.  Thus, of necessity, that they had to create primers that may reliably ignite ball powders below all disorders.

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That’s an awesome dilemma, Ted. REMINGTON 7 1/2 PRIMERS I’m undecided. Here's a pair samples of what I’ve read in various places around the Federal 210 vs Federal 210M variations: