22lr in 5.45x39mm barrel - Page 1

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[ARCHIVED THREAD] - 22lr in 5.45x39mm barrel

Posted: 8/22/2014 4:25:53 PM EDT

this has been discuused before and I would like to bring it up again

Im thinking of using a 5.45x39mm (.221) barrel for a .22 LR project

what are your thoughts and what do you think about this type of use, remember 22lr is a lead projectile

have you read anywhere where some one had a problem trying this

sprat

Posted: 8/22/2014 4:31:47 PM EDT

[#1]

What is the twist rate of the barrel ?

Also what is the reason for this when there are so many purpose built .22 LR barrels out there ?

Posted: 8/22/2014 4:56:11 PM EDT

[#2]

the purpose is to use a old 5.45mm barrel

I m a extremely well versed builder not some idiot who slapped pre made part together, Im working up a special project, I know i can buy 22 cal barrels I know about the difference in 223/556 and 5.45 ( 221)

so back on topic has anyone had success using 22lr with lead projectiles in a 5.45 x39mm rifled barrel

Posted: 8/22/2014 6:01:27 PM EDT

[#3]

Quote History

Quoted:
so back on topic has anyone had success using 22lr with lead projectiles in a 5.45 x39mm rifled barrel

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Fires just fine from a modified Ciener 22 conversion in my S&W M&P-15 5.45 upper. Accuracy is meh - but fine for plinking.

Posted: 8/22/2014 11:18:29 PM EDT

[#4]

I m a extremely well versed builder not some idiot who slapped pre made part together, Im working up a special project, I know i can buy 22 cal barrels I know about the difference in 223/556 and 5.45 ( 221)

My apologies sir I wasn't aware of your vast experience in the special projects department and obviously superior intellect.

Posted: 8/23/2014 3:10:41 PM EDT

[#5]

Quote History

Quoted:
I m a extremely well versed builder not some idiot who slapped pre made part together, Im working up a special project, I know i can buy 22 cal barrels I know about the difference in 223/556 and 5.45 ( 221)

My apologies sir I wasn't aware of your vast experience in the special projects department and obviously superior intellect.

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if I wanted to use a 22lr barrel i would have just ordered one from sarco or green mountain, and yes you where not aware, you where not talking to one of the wannbe's on this site or 12' s13's or 14's
I am glad i received ONE intellegent answer

Thank you

Posted: 8/23/2014 4:50:39 PM EDT

[#6]

Quote History

Quoted:

if I wanted to use a 22lr barrel i would have just ordered one from sarco or green mountain, and yes you where not aware, you where not talking to one of the wannbe's on this site or 12' s13's or 14's
I am glad i received ONE intellegent answer

Thank you

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Quote History

Quoted:

Quoted:
I m a extremely well versed builder not some idiot who slapped pre made part together, Im working up a special project, I know i can buy 22 cal barrels I know about the difference in 223/556 and 5.45 ( 221)

My apologies sir I wasn't aware of your vast experience in the special projects department and obviously superior intellect.

if I wanted to use a 22lr barrel i would have just ordered one from sarco or green mountain, and yes you where not aware, you where not talking to one of the wannbe's on this site or 12' s13's or 14's
I am glad i received ONE intellegent answer

Thank you

Serious question: Why are you so defensive?

He just asked what the twist rate was, (valid question), and why you were using a 5.45 barrel instead of a purpose built .22lr barrel.

Posted: 8/25/2014 9:33:41 AM EDT

[#7]

this site is waste of time

why none of your business, this question has been answered on numerous other sites by obviously folks who know what they are doing

Posted: 8/25/2014 9:44:33 AM EDT

[#8]

All I can do is go

Posted: 8/25/2014 10:55:04 AM EDT

[#9]

I'll bet OP is a riot at parties...

Posted: 8/25/2014 11:59:14 AM EDT

[#10]

Quote History

Quoted:
this site is waste of time

why none of your business, this question has been answered on numerous other sites by obviously folks who know what they are doing

View Quote

Then maybe you should stick to those other sites.

Posted: 8/26/2014 7:33:05 AM EDT

[#11]

If the OP was extremely well versed he would know the twist rate will not lead to good accuracy and the barrel will have terrible lead fouling. But I guess he just want's to see if the rest of us know that.

Posted: 8/26/2014 8:32:47 AM EDT

[#12]

Most 5.45 barrels run a twist rate of around 1:8. The bore's run pretty tight, .214 or so with the groove about .221 as noted. A lot of the com-bloc barrels I've seen are pretty rough and I would think they would lead up pretty quickly. It might be a good basis for a barrel project centered on the 60 grain subsonic Aquila ammo if the bore seems smooth. Most 10-22 barrels for that ammo are 1:9.

Posted: 8/26/2014 9:19:14 AM EDT

[#13]

Quote History

Quoted:

Fires just fine from a modified Ciener 22 conversion in my S&W M&P-15 5.45 upper. Accuracy is meh - but fine for plinking.

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Quote History

Quoted:

Quoted:
so back on topic has anyone had success using 22lr with lead projectiles in a 5.45 x39mm rifled barrel

Fires just fine from a modified Ciener 22 conversion in my S&W M&P-15 5.45 upper. Accuracy is meh - but fine for plinking.

How did you modify the Ciener conversion?

Posted: 8/26/2014 10:27:11 AM EDT

[#14]

Quote History

Quoted:
Most 5.45 barrels run a twist rate of around 1:8. The bore's run pretty tight, .214 or so with the groove about .221 as noted. A lot of the com-bloc barrels I've seen are pretty rough and I would think they would lead up pretty quickly. It might be a good basis for a barrel project centered on the 60 grain subsonic Aquila ammo if the bore seems smooth. Most 10-22 barrels for that ammo are 1:9.

View Quote

Surprisingly I get great accuracy on that ammo out of the cheap Romanian bolt actions. I have 5 of the rifles and all shoot that ammo very well. Odd to say the least.