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I think the Creademoh is the front runner. I have a nagging doubt that the 22 x 6x47mm Lapua may be more inherently accurate but with my shooting skills and not in a Heavy BR rifle I doubt I could tell the difference. Dies will not be too problematic as long as I can spell the name correctly. Thanks for the input especially from Steve Timms and Scenar shooter, I only wish I could do some of what you have done. I have hunted a lot but my experience pales by comparison. Thanks my Kampfar Bretheren.


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Just waiting on my Alpha brass..................

[img]https://i.imgur.com/cwBOhOq.jpg?1[/img]

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I can spell 220 Swift easier.


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I'm building a 22-250AI, because it isn't a creedmoor.


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Originally Posted by Mule Deer
Yeah, it's got a 28-degree shoulder, almost the same as the Creedmoor's 30 degrees.

Which is probably the biggest advantage the .22 Creedmoor has over the .22-250 AI. The head tech at one of the major powder companies says the 30-degree shoulder angle so popular among "accuracy" cartridges is the real deal. He see's less pressure and velocity variation with shoulders around 30 degrees than shoulder angles much less or more, whether the 20-degree shoulders of .308-based rounds, or the 40-degree shoulders of Ackley Improveds.



Id bet a sugar cookie most rounds fired at said powder company is running more Remchester hulls in their database for the latter shoulder angles; 30 degree hulls usually correlate with primo brass. Flash hole precision and volumetric capacity not being a known quantity for the bulk manufacturers of brass.

Or maybe one should re-consider the 300 WSM/300HH comparisons?

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Could be--but Palmisano and Pindell also settled on a 30-degree shoulder for the PPC rounds, for the same reason, and they used the same brass for all their experiments.


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I recall Dan Pawlak did some work comparing the 222 Remington and, at that time, the 22 PPC. The DeLeval (sp?) nozzle and short powder column being credited with the more uniform ballistics for the benchrest powders used at the time.

I might have to see if I can find it.

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I have been shooting the 22-250AI for decades, have my own reamer and fireforming barrel. chances of me trying the 22 Creedmoor are zero. I have built enough rifles on this platform to find what works and what does not. I wont ever build another with a slow twist (1-14") and wont build another with ultra fast twist (1-7"). the happy spot for me is 1-8" twist with 80gr bullets and Lapua brass and 5 or 6 groove barrel.

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Does anyone here know if the .22 CM reamer would clean up a .22-250 Chamber ?

Thanks, I realize the twist is way too slow, but just thinking about the concept and possibilities ...

Edit to add :

https://load-data.nosler.com/load-data/22-250-remington/

https://load-data.nosler.com/load-data/65-creedmoor/

Might be close, The 22-250 shoulder is .414" diameter at 1.515" ; while the CM is .462" diameter at 1.490"
.. going to have to do some trigonometry here

Last edited by 338Rules; 04/06/18. Reason: Added case dimensions from Nosler reloading

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I jumped on a special (left hand) run of Tikka 22-250’s, 8-twist, T3X’s some time ago through Whittakers. In regard to the 22 Creedmoor, I learned from Pat that it’s reamer will clean up a 22-250 chamber with nothing else done, so of course, as a loony, I have thought of it but...the first load I tried with the 22-250, 8-twist, with Nos 69-gr Custom Comp bullets and R17 went into less than .5 MOA at 300 yards and clocked at just over 3300 fps.

I think age is finally modulating my inclination to remodel chambers and toward more esoteric cartridges...as good as they may be. That Creed looks very good though.

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Quite the conundrum ! At .5 MOA in the original configuration, it's definitely a bird in the hand.

On the other hand though, It is definitely accurate enough to risk a re-chamber - hint

Inquiring minds need to know if that reduced taper and larger shoulder will get you down to .4 MOA

Cheers !


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Originally Posted by 338Rules
Does anyone here know if the .22 CM reamer would clean up a .22-250 Chamber?


I'm going to say no based on the following image: (shoulder is further forward on the 22-250)

[Linked Image]

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MM : I'm inclined to agree, ( see Edit my post, 2 up )


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Originally Posted by Grand
Just waiting on my Alpha brass..................

[img]https://i.imgur.com/cwBOhOq.jpg?1[/img]
[Linked Image]


Vais brake?


Originally Posted by 16penny
If you put Taco Bell sauce in your ramen noodles it tastes just like poverty
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[Linked Image]


Originally Posted by 16penny
If you put Taco Bell sauce in your ramen noodles it tastes just like poverty
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kingston : You're fixated on that groove width. Pourquoi ?


Secret Code Perhaps ?


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Last edited by 338Rules; 04/06/18. Reason: Mysterious Cryptic Scribblings w/ Circles'n Arrows

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Originally Posted by kingston
[Linked Image]


Originally Posted by kingston
[Linked Image]

[Linked Image]

[Linked Image]



Clearly not time to Circle the Wagons


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Originally Posted by George_De_Vries_3rd

I jumped on a special (left hand) run of Tikka 22-250’s, 8-twist, T3X’s some time ago through Whittakers. In regard to the 22 Creedmoor, I learned from Pat that it’s reamer will clean up a 22-250 chamber with nothing else done, so of course, as a loony, I have thought of it but...the first load I tried with the 22-250, 8-twist, with Nos 69-gr Custom Comp bullets and R17 went into less than .5 MOA at 300 yards and clocked at just over 3300 fps.

I think age is finally modulating my inclination to remodel chambers and toward more esoteric cartridges...as good as they may be. That Creed looks very good though.


Along that line of reasoning: the 300 Savage apparently had/has everything over the 308 Winchester.

Too bad that 32 years prior AND a 30 degree shoulder, the Savage (and the 30 TC) hold candles only in theory.

While everyone gets lathered up about the 22, 6 and 6.5 Creedmores and 30 degrees of precision, the original "Creedmore", the 30 TC, has been a VC hoor tested with a copper penny.

There's several reasons why, but the main reason is the 308 doesnt suck and the semantics havent taken over the range...

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I've long wished someone would domesticate the .22-250AI, with a fast twist

So of course I wandered far off the beaten path, and bought a .220 Howell blush


"...the designer of the .270 Ingwe cartridge!..."

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Originally Posted by kingston
Originally Posted by Grand
Just waiting on my Alpha brass..................

[img]https://i.imgur.com/cwBOhOq.jpg?1[/img]
[Linked Image]


Vais brake?



Yes, GAP Extreme Hunter Platform

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