20" .22-250

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20" .22-250

Post by MalleeFarmer » 16 Jun 2017, 8:04 am

G'day All,

My "local" Smith has a 20" .224 cal 1-12 twist MAB barrel in stock for cheap ($200) and I was wondering if anyone has experience with a short .22-250 since I am considering rebarreling mine and this would save me around $450 which would top it with a reasonable quality scope as well replacing the existing one.

I know muzzle blast will be horrible and velocity will suffer severely but is it really all that bad?

Cheers,
Mallee
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Re: 20" .22-250

Post by Jeff303 » 16 Jun 2017, 9:09 am

Not really. You wont lose vast amounts of velocity, for a sporter will be fine.
Will bark like a mother though
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Re: 20" .22-250

Post by bigfellascott » 16 Jun 2017, 9:13 am

Should shoot flames and bark like a motherfucker :lol: I think you lose roughly around 50fps per 1" so you'll drop a few 100fps so no real big deal I guess and you'll probably have to run a fast burning powder to help keep the flames down some what too, :thumbsup:
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Re: 20" .22-250

Post by Gwion » 16 Jun 2017, 9:13 am

It will deafen you and everyone around you! My 18.5" 223rem is quite loud but it is the 'sharpness' of the blast that stands out.
Also, is 1:12 suitable for 22-250?
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Re: 20" .22-250

Post by Jeff303 » 16 Jun 2017, 9:14 am

Will be bloody impressive at dusk
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Re: 20" .22-250

Post by Gwion » 16 Jun 2017, 9:16 am

Jeff303 wrote:Will be bloody impressive at dusk


That too! Muzzle flash will be severe.
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Re: 20" .22-250

Post by Jeff303 » 16 Jun 2017, 9:19 am

Im seeing a howitzer im my mind
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Re: 20" .22-250

Post by bigfellascott » 16 Jun 2017, 9:22 am

Jeff303 wrote:Im seeing a howitzer im my mind


You are seeing correct a louden boomer flamethrower :lol: :lol: :lol: :lol:
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Re: 20" .22-250

Post by Gwion » 16 Jun 2017, 9:29 am

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Re: 20" .22-250

Post by Gwion » 16 Jun 2017, 9:34 am

By the way, you'll get a truflite barrel for about $500odd.
My theory is that you will have to use a fast powder to reduce muzzle flash and you will burn the throat out very quickly while suffering reduce velocity, excessive blast and flash. Worth the extra $300 to do it right with a truflite barrel.
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Re: 20" .22-250

Post by MalleeFarmer » 16 Jun 2017, 10:24 am

Gwion wrote:It will deafen you and everyone around you! My 18.5" 223rem is quite loud but it is the 'sharpness' of the blast that stands out.
Also, is 1:12 suitable for 22-250?


1-12 is the fastest I would go in a 250 or I'm better off rechambering. But it will allow me to use 60-65 gr projectiles and also allow 55gr V-max etc. to be completely stable a 1-14 is marginal for the longer BT Vmax and other longer projectiles.

I know the Muzzle blast will be excessive and also the flash. But it's only 22" now so I'm thinking an extra 2" off ain't much.
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Re: 20" .22-250

Post by Jeff303 » 16 Jun 2017, 10:54 am

You're obviously not using it as a dedicated varmint rig so go for it
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Re: 20" .22-250

Post by Gwion » 16 Jun 2017, 11:04 am

If you're already happy with the 22", go for it. From the sound of it it may pay to spend a little getting the action trued up a bit while you're at it.
Last edited by Gwion on 16 Jun 2017, 11:18 am, edited 1 time in total.
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Re: 20" .22-250

Post by Gamerancher » 16 Jun 2017, 11:09 am

A $200 MAB barrel, bargain. (provided it is new)
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Re: 20" .22-250

Post by valkyrie » 16 Jun 2017, 8:07 pm

Ive got a mossberg 4x4 in 250. The pencil weight 20" barrel is great to carry around but its loud as hell and kicks more than my .308. Muzzle flash at night is also an issue as i run a low power scope and it obscures it completely in the dark. Accuracy seems fine though but i havent run it over a chrono
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Re: 20" .22-250

Post by Strikey » 17 Jun 2017, 9:24 pm

MalleeFarmer wrote:G'day All,

My "local" Smith has a 20" .224 cal 1-12 twist MAB barrel in stock for cheap ($200) and I was wondering if anyone has experience with a short .22-250 since I am considering rebarreling mine and this would save me around $450 which would top it with a reasonable quality scope as well replacing the existing one.

I know muzzle blast will be horrible and velocity will suffer severely but is it really all that bad?

Cheers,
Mallee


If that is a 20 inch blank be aware that after chambering and fitting to your action it may end up a bit shorter than 20 inches, that may hurt :thumbsup:
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Re: 20" .22-250

Post by straightshooter » 18 Jun 2017, 7:27 am

MalleeFarmer
Sometimes bargains don't turn out to be that big a bargain after all.
All the doom and gloom referred to in some of the posts tends to exaggerate what you may experience. A short barrel is really handy when you shoot alone from or out of a vehicle.
I believe your main area of disappointment may be with the twist. 1 in 12 should be fine for 55 grain but is becoming marginal for 60+ grain bullets unless they are a blunt low bc shape.
To paraphrase a well known room temperature IQ Tasmanian politician, you might not be impressed by the final package.
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Re: 20" .22-250

Post by MalleeFarmer » 18 Jun 2017, 8:24 am

straightshooter wrote:MalleeFarmer
Sometimes bargains don't turn out to be that big a bargain after all.
All the doom and gloom referred to in some of the posts tends to exaggerate what you may experience. A short barrel is really handy when you shoot alone from or out of a vehicle.
I believe your main area of disappointment may be with the twist. 1 in 12 should be fine for 55 grain but is becoming marginal for 60+ grain bullets unless they are a blunt low bc shape.
To paraphrase a well known room temperature IQ Tasmanian politician, you might not be impressed by the final package.


Actually seeing as 1-14 is the standard twist in a 250 and most that I have used stabilise 55s fine a 1-12 is usually seen as suitable for up to 65gr varmint/hunting bullets and even 60+ match bullets. I wouldn't go faster than 1-12
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