Counter Bored?

paynetrain · 01-14-2009, 10:39 PM

Thanks Fitterman24 I will post pics as soon as I figure out how.

TinCan Assasin · 01-24-2009, 04:09 AM

Alright, but what about gas blowby in the counterbore area? Does that effect accuracy? Will it make the bullet wobble or push it in an odd direction?

TCA

conanld · 04-03-2009, 12:59 AM

Does anyone have an M44 that isn't counterbored? All of mine are. On the other hand, none of my M91/30's are counterbored.

LD

sawnoffshotgun · 04-03-2009, 01:38 AM

Counter boring is ok a little bit but I had an sks that literally had half the barrel counter bored. I wonder if you can make shot loads for 7.62x39

jsmaye · 04-03-2009, 08:53 AM

Quote:

Alright, but what about gas blowby in the counterbore area? Does that effect accuracy? Will it make the bullet wobble or push it in an odd direction?

As far as ballistics go, the beginning of the counterbored area is no different than the end of the barrel.

Trigger Happy · 04-03-2009, 09:01 AM

my counterbored 39 tula shoots slightly better than my noncounterbored 43 izzy.

generoll · 09-17-2009, 09:22 AM

wouldn't counterboring be a bit like "crowning" a rifle?

rawpain67 · 11-19-2009, 06:12 PM

had a fella tell me I sold him an M1 Garand barrel that was countered bored (sold ON GB). I told him none of my barrels were counterd bored.
he said ME gaged at 2...
my question is... If the barrel was countered bored would the ME still gage a 2...
I would think the gage would fall in.

what else is funny is when I gaged the barrel before i sold it I swear it was a 1....now hes sayin its a 2..
its a mystery!

any words on this
thanks

jt185 · Yesterday, 03:03 PM

My 31 Tula is counter bored. I assume it must've needed it. It shoots good for all practical purposes.

01-24-2009, 04:09 AM	#22
TinCan Assasin Senior Member Join Date: Aug 2008 Location: Arizona Posts: 1,445	Alright, but what about gas blowby in the counterbore area? Does that effect accuracy? Will it make the bullet wobble or push it in an odd direction? TCA __________________ Deprived of Class VI so the IN can have Class I.

11-19-2009, 06:12 PM	#28
rawpain67 Registered User Join Date: Nov 2009 Posts: 1	counter boring had a fella tell me I sold him an M1 Garand barrel that was countered bored (sold ON GB). I told him none of my barrels were counterd bored. he said ME gaged at 2... my question is... If the barrel was countered bored would the ME still gage a 2... I would think the gage would fall in. what else is funny is when I gaged the barrel before i sold it I swear it was a 1....now hes sayin its a 2.. its a mystery! any words on this thanks

01-14-2009, 10:39 PM	#21
paynetrain Senior Member Join Date: Jan 2009 Location: The Georgia that didnt get attacked by Russia Posts: 865 Images: 2	Thanks Fitterman24 I will post pics as soon as I figure out how.

04-03-2009, 12:59 AM	#23
conanld Senior Member Join Date: Sep 2007 Location: Snoqualmie WA Posts: 115	Does anyone have an M44 that isn't counterbored? All of mine are. On the other hand, none of my M91/30's are counterbored. LD

04-03-2009, 01:38 AM	#24
sawnoffshotgun Banned Join Date: Apr 2009 Location: Athol Idaho but mainly in the detention room Posts: 321 Blog Entries: 1	Counter boring is ok a little bit but I had an sks that literally had half the barrel counter bored. I wonder if you can make shot loads for 7.62x39

04-03-2009, 09:01 AM	#26
Trigger Happy Senior Member Join Date: Mar 2009 Location: Phx, AZ Posts: 249	my counterbored 39 tula shoots slightly better than my noncounterbored 43 izzy.

09-17-2009, 09:22 AM	#27
generoll Senior Member Join Date: Oct 2008 Location: Branson, MO Posts: 259	wouldn't counterboring be a bit like "crowning" a rifle?

Yesterday, 03:03 PM	#29
jt185 Member Join Date: Nov 2009 Location: eastern Iowa Posts: 8	My 31 Tula is counter bored. I assume it must've needed it. It shoots good for all practical purposes.