Mosin M38 question

BlueFin · May 20, 2009

I bought a beautiful m38 about a month or so ago which I have not test fired yet . Last night I tried inserting a 7.62x 54R bullet in the muzzle and noticed that there is a waaay big gap between the ammo and the bore. Would I assume that this barrel is shut? Looking at the muzzle and the bullet in it, the bore size look like 38. The bullet and the case neck goes all the way in smoothly. It does not look good,,,right? :sad20:

j8064 · May 20, 2009

The muzzle is likely counterbored.

Half-cocked · May 20, 2009

I haven't seen an M38 that wasn't counterbored, although I'm sure they exist... somewhere...

h2u · May 20, 2009

Half-cocked said:
I haven't seen an M38 that wasn't counterbored, although I'm sure they exist... somewhere...

I know where a couple are.......... :innocent0

fivepointstar · May 20, 2009

BlueFin said:
I bought a beautiful m38 about a month or so ago which I have not test fired yet . Last night I tried inserting a 7.62x 54R bullet in the muzzle and noticed that there is a waaay big gap between the ammo and the bore. Would I assume that this barrel is shut? Looking at the muzzle and the bullet in it, the bore size look like 38. The bullet and the case neck goes all the way in smoothly. It does not look good,,,right?

Can you include a pic? I"m interested to see what its looks like, I've never seen that

thanks!

zoostation · May 20, 2009

Probably counterbored. I've never seen an M38 that was shot out. Not to say they don't exist, of course. Headspace gauge still wouldn't hurt, in my opinion. Better safe than sorry.

BlueFin · May 20, 2009

Thanks for the replies, i will post some pics tonight.

j8064 · May 20, 2009

h2u said:
I know where a couple are..........

Yep...you're a Mosin Machine!

Russ D · May 20, 2009

Definitely counterbored. No biggie, my M38 is an awesome shooter.

BlueFin · May 22, 2009

Here is the pics of my counterbored M38 next to the Norinco SKS for comparison. Both are 7.62.

BlueFin · May 22, 2009

Another pic

h2u · May 22, 2009

Nice pics. In the future you can always take a toothpick and push it down the interior side of the muzzle and be able to feel the ridge where the "new" crown is.

repair-man · May 22, 2009

I'm sure the counterboring just adds to the fireballs we shoot out of them.

wilcam47 · May 22, 2009

Ive never seen this...what is the reason for counter boring?

Drmsparks · May 22, 2009

When the lands and grooves are worn out at the end of the barrel, rather than cutting and recrowning the barrel (due to the proximity of the front site), you bore an oversize hole until you reach good barrel. This improves accuracy without changing the site radius. the US did it as well, particularly with m1 carbines, although I have been fortunate enough not to run across any.

fivepointstar · May 22, 2009

Drmsparks said:
When the lands and grooves are worn out at the end of the barrel, rather than cutting and recrowning the barrel (due to the proximity of the front site), you bore an oversize hole until you reach good barrel. This improves accuracy without changing the site radius. the US did it as well, particularly with m1 carbines, although I have been fortunate enough not to run across any.

Thank you!! I was wondering myself

wilcam47 · May 22, 2009

Drmsparks said:
When the lands and grooves are worn out at the end of the barrel, rather than cutting and recrowning the barrel (due to the proximity of the front site), you bore an oversize hole until you reach good barrel. This improves accuracy without changing the site radius. the US did it as well, particularly with m1 carbines, although I have been fortunate enough not to run across any.

cool...learned something new!

j8064 · May 22, 2009

BlueFin,
Nice pics.
One other minor but important point: Make sure you don't get any cosmoline residue on Mrs. BlueFin's nice clean bedspread. If there is a Mrs., they don't seem to like that much... :banghead:

BlueFin · May 23, 2009

j8064 said:
BlueFin,
Nice pics.
One other minor but important point: Make sure you don't get any cosmoline residue on Mrs. BlueFin's nice clean bedspread. If there is a Mrs., they don't seem to like that much...

Yep,,she called my attention

. Feel much better now about my m38.

Thanks.

Mosin M38 question

The #1 community for Gun Owners of the Northeast

Member Benefits:

Ultimate Member

Garrett Co Hooligan #1

Senior Meatbag

Village Idiot

Thank you MD-Goodbye

, ,

Ultimate Member

Garrett Co Hooligan #1

Ultimate Member

Ultimate Member

Ultimate Member

Village Idiot

Active Member

Ultimate Member

Old School Rifleman

Thank you MD-Goodbye

Ultimate Member

Garrett Co Hooligan #1

Ultimate Member

Users who are viewing this thread

Log in

Forum statistics