My 22 Creedmoor is ready...

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Originally Posted by 7mmsaum

The 240 Gibbs used a 270 case from memory, could be wrong, was many moons ago

There’s nothing new under the sun that’s for sure

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Greg Duley used to run a 240 Gibbs.

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Originally Posted by Kiwi Greg

Sound like a great idea, I built a long 40 degree improved one in April 2013

The old 30 grain Berger went pretty quick ;)

https://hosting.photobucket.com/c75a...720&fit=bounds

Not as interesting as you might think regarding terminal performance though :(

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22/08 would be near on identical to the 22/243 .....so definitely reinventing the wheel lol

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Originally Posted by TeRei

And to be honest, when I shoot a deer with the .223 I do feel rather smug.

Lest we forget. Crikey what's the resonse now?

No foto with Bella. Sad.

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The Creedmoor is “as well”, not “instead”.

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Originally Posted by Micky Duck

22/08 would be near on identical to the 22/243 .....so definitely reinventing the wheel lol

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A lot of the new cals are. Basically change the case a tiny bit and fit a faster twist barrel....

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Originally Posted by blip

Im going to invent a 22 08

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or you could call it a 22 CHeetah... done already! Though I'm fireforming some 243 brass ('cause its already mostly necked down). So does that make it more a 22-243 AI?

I had a 1:8 22/243 for a while, so fussy on loads and hard on brass, split necks, accuracy was 1.5 MOA at best . Truflight Rechamberd it to 22-250ai all problems disappeared. Brass is on 5-6 firing no trimming required, no primer pocket stretch, no split necks. Shoots .3MOA with 80.5 bergers and .5 with the 80g eldm. Blows heads to smithereens, shot deer out to 350m in the crease DRT. A treat to shoot. Basically a ballistic twin to the 22creedmoor and been available since the 70’s as a wildcat.

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Originally Posted by Padox

Just through a few rounds together for my daughters 22cm test and sight inAttachment 271340

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@Padox what did you try?

75gr eld-x with a bit of 2209 built her brass from some normal 6.5 brass but also had a go at making some 22-08 brass when I found some 7mm08 brass hiding amongst the brassAttachment 271506

Was a load that tentman gave me with her rifle @Tahr

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Originally Posted by Padox

Was a load that tentman gave me with her rifle @Tahr

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@Tentman is now a her? He might be surprised to know that.

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Originally Posted by nor-west

@Tentman is now a her? He might be surprised to know that.

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Padox was referring to his daughter.

My dad's saying "when I was a little girl your age" . . . . It was a piss take but I never really figured out what it meant. A bit like the West Coast expression "anybody who calls you a fool has seen a few"!

First shots today. Bore sighted and shot at 25 yards, an inch adjustment down and left, one more shot at 100 yds and one slight adjustment from that. 2 shot sight in, nice.

Powder 2209, and 80 grn ELDX. Cases Lapua SRP, first resize from 6mm Creed. No pressure signs at all.

I will load some 39.8 grns and try again but they look on the money. They should chrono circa 3,250 fps and will be a good start for hunting. Ive been keen to try the 80 ELDX.

First 3 shots, 39 grns (only shots chrono'd). Velocity 3,214 fps.
Attachment 271566

2nd 3 shots. 39.5 grns.
Attachment 271567

3rd 2 shots. 39.8 grns
Attachment 271568

4th 2 shots. 40 grns
Attachment 271569

I see Greg is using RL 26 Bruce, this looks a very interesting build and I can't wait for the updates, thinking I need one built myself now.

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Originally Posted by nor-west

I see Greg is using RL 26 Bruce, this looks a very interesting build and I can't wait for the updates, thinking I need one built myself now.

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Ive got R26 but 2209 should do the job. For first hit out with 3 loads and 10 shots inside an inch I don't think I need to fuss too much. Im happy with the velocity too.

If you want some more 80grn eldx yell out

Sent from my CPH2531 using Tapatalk

Hodgdon Superperformance would be worth a try

Sent from my CPH2531 using Tapatalk

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Originally Posted by 25/08 IMP

If you want some more 80grn eldx yell out

Sent from my CPH2531 using Tapatalk

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We could do that swap thing again, if you have the patience.

Remember Gimps 10 shot mantra! The 10 shot group groups will be interesting.

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Originally Posted by nor-west

Remember Gimps 10 shot mantra! The 10 shot group groups will be interesting.

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Looking at the 3 shot groups it looks like a bin job already,unfortunately... :o

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Originally Posted by Tentman

I put my 6mm CM barrel back in an action the other day and checked its zero tonight. I reckon the small CMs are bloody hard to beat and outshine their big brother by a large margin. My 6mm is very easy to shoot very well, despite what I've learnt over the last year or so about statistically valid groups there is simply no need to shoot anymore than 3 shot groups to get it zeroed, and the 103s at 3040fps make hunting easy.

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Blasphemous!

Looks like you're coming full circle with the statistics. Some rifles are precise enough that its not really worth shooting 10shots group each time you zero a rifle.
I dropped and fell on my rifle a few times while hunting the Ruahines this last week. I was sure it would be out. 3 shots of my main load later and two of the bush load (which crono'd 80fps slower?) and i knew it was still dead on (1 click left to negate spindrift)
Attachment 271610

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Originally Posted by caberslash

Looking at the 3 shot groups it looks like a bin job already,unfortunately... :o

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Hah. You should see my shooting on a bad day.

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Originally Posted by Tahr

Hah. You should see my shooting on a bad day.

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Now that your sure to bin this barrel @Tahr, i'll buy it of you for a song :P
I might try get a 22 CM barrel with the excuse that it's for my daughters ;)

If you want some superperformance to try in it I've got some you're welcome to have

2209 is really a bit on the quick side for optimal performance. 2213 would be a good choice, I’m using IMR7828ssc in mine. Something in the region of 42.3gr with 88’s

I'm using rl22 atm with 88s
Not super quick at 2864fps 16 inch tube but doing the busy

On the topic of hot calibres eg Creedmoor necked down here is an experience of mine.

About 40 years ago a gunsmith mate made up this wildcat.
I cannot remember all the detail eg barrel source (maybe ex machine gun, I don't know).
He didn't have a chronograph (they were very rare back then) so no idea of the velocities.
No idea of powder (there was a lot of strange unidentified ex military stuff still around then) or how much.
Accuracy was abysmal with some projectiles maybe not making it to the target.

I think he got around 200 rounds before the barrel was toast and became a tomato stake. Maybe overbore?

Attachment 271736