This action tests out at "about 35+ RC" I say "about" because I'm using a portable tester by Pacific Transducer Corp. and it's a fine line interpretation using the graph within the scope.


So...any thoughts why NOT to use this action?

I ask because I've not had a lot of experience except with 7 x57, 257P, etc on the Mexican

I have 1910 and 36 mausers in 22-250,
375/284 and 400/375 belted nitro.
None have had any headspace problems, but I do not push the loads in any of them.

When I get actions heat treated at Blanchard, I specify a case depth of .010-.015, with a surface hardness of RC 35-40.
That is plenty hard. I do not put belted mags on them though.

Thanks to all...Extra opinions always helpful

I would just like to add that, not only does the 6.5 Creedmoor have a high max pressure, the factory ammo, especially Hornady’s, is right at the red line.

Yep...Recently fired Hornady 30-06y and the primers looked like they'd been installed with a trowel

Nuthin' new there. Hornady isn't afraid to pour on the smoke especially in their Superformance line.

As for the original question;

My 1936 had no lug setback shooting warmed up 7X57's. Not aware of any difference in metal hardness from the 10.
My small ring KAR98 (rumored to be soft) has no setback issues shooting factory standard velocity 6.5 Creedmoor.

Only concern I would have is the firing pin diameter and fit. With small rifle primer brass available I’ve had blanking issues with Win 70’s that had .084”+ diameter pins. Had to bush the bolt face and turn down the tip. This was with a 6x47 Lapua, but the same would hold true for any SRP brass I think.

Small primer on the 6.5 Creedmore? None of the ammo I've used...Appreciate your concern about the
firing pin.

This particular action came with a brand new bolt....Have no idea how THAT was obtained, but I'll take it.

quote:

Originally posted by Duane Wiebe (CG&R):
Small primer on the 6.5 Creedmore? None of the ammo I've used...Appreciate your concern about the
firing pin.

This particular action came with a brand new bolt....Have no idea how THAT was obtained, but I'll take it.

Duane,

Lapua makes 6.5 Creedmoor brass with the small primer hole size. Some say/think the small primer hole gives more uniform ignition and therefore is more accurate.
I have shot some through the 6.5 Creedmoor Kurz action Mauser that you built and it still went bang. As far as the accuracy claims - I couldn't tell much difference and elected to stay with the standard Fed#210 primer for positive ignition.

Mike

Well...didn't know that! Thanks...Seems like a solution in search of a problem to me.

One will not likely find any factory Creedmoor ammo with small rifle primers. I believe the real reason for small rifle primers in these rounds is to leave more meat in the web, so as to allow more pressure while keeping primer pockets tight longer. Same for the x47 Lapua and XC. The target shooters tend to run them all pretty hard.

Yeah, I didn't mean to give the impression that was all creedmoor brass, only that it is available out there and could cause a problem if used...maybe not.

I have 500 pcs of Peterson 6mm Creedmoor SRP brass, good stuff but not sure there's any advantage but necked down to 22 Creed I've been able to run some pretty impressive velocities for a coyote rifle with no pressure signs.

just bought some federal non-typical ammo . It has small primers.

Like Mike says, the Federal factory ammo uses SR primers. I did not realize it till I tried to prime some while doing Hornady brass with LR's. Huh.