Mosin Nagant Failed the Barrel test

[mistuhchia]

What are my options here...? Is there anything I can do to change this short of buying a new mosin?

[NotEnoughGuns]

Is it counterbored?

[mauser98k]

that's how far the bullet goes into my M38 but it's because it's counterbored. is the bore at the muzzle smooth for about an inch with rifling past that? if so, it's not a problem

[mistuhchia]

Yup, I guess it is counter-bored cause its smooth for awhile, then I see rifling.

Thanks for putting my mind at ease!

[Fate]

Since it's counterbored, it should be more accurate than one that was used hard and wasn't counterbored.

Go shoot it. You should be pleasantly surprised.

[mauser98k]

Since it's counterbored, it should be more accurate than one that was used hard and wasn't counterbored.

Go shoot it. You should be pleasantly surprised.

with the bayonet out. M44s were designed to be fired with it extended

[AngryPossum]

Not all ranges allow you to shoot with the bayonet extended. If you shoot with the bayonet out remember to wipe it down really good to get all the corrosive salts off of it...there will be plenty of crap on it after shooting all day.

[knucklehead0202]

some shoot well with the bayonet extended, some don't. mine shoots POA at roughly 100 yds with it folded. either way, most mosins you'll find these days are counterbored, both of mine are. it's not a big deal, they just bored out the corroded crappy rifling, leaving you with a decent bore. go shoot and enjoy. if you whine about the recoil, go buy an AR like the other sissies who can't handle a MAN rifle.

[steve91104]

Hi, can somebody point me to a thread that explains counterboring and the barrel test?

Thanks

Steve

[mauser98k]

Hi, can somebody point me to a thread that explains counterboring and the barrel test?

Thanks

Steve

Muzzles of Mosin Nagant barrels are found in a variety of conditions. Some are like new with sharp lands extended to the crown. Others are worn, primarily from improper cleaning, with the lands tapering at the crown. The Soviet Union and Finland both counterbored worn muzzles to recess the crown to a point where the lands are still sharp. This was done to improve accuracy without the expense of shortening the barrel or rebarrelling the rifle.

Fresh Muzzle:



Worn Muzzle




Counterbored Muzzle




the muzzle test is simply placing the bullet in the muzzle and seeing how much of the bullet itself sticks out. and you can pretty much tell whether your rifle is really worn or a nice tight muzzle. if the rifle is counter bored the whole bullet will fit inside the muzzle up to the neck of the round.

[NaughtyMonkey]

some shoot well with the bayonet extended, some don't. mine shoots POA at roughly 100 yds with it folded. either way, most mosins you'll find these days are counterbored, both of mine are. it's not a big deal, they just bored out the corroded crappy rifling, leaving you with a decent bore. go shoot and enjoy. if you whine about the recoil, go buy an AR like the other sissies who can't handle a MAN rifle.

I shot about 100 rounds out of mine the other day and I have a nice yellow bruise on my shoulder lol. I love it! haha.

[SVT_Fox]

counterbore for SURE, its all good! blast away!

[mif_slim]

It fail, send it to me and I'll pay shipping...I'll throw it away for you.

[AngryPossum]

Muzzles of Mosin Nagant barrels are found in a variety of conditions. Some are like new with sharp lands extended to the crown. Others are worn, primarily from improper cleaning, with the lands tapering at the crown. The Soviet Union and Finland both counterbored worn muzzles to recess the crown to a point where the lands are still sharp. This was done to improve accuracy without the expense of shortening the barrel or rebarrelling the rifle.

Fresh Muzzle:



Worn Muzzle




the muzzle test is simply placing the bullet in the muzzle and seeing how much of the bullet itself sticks out. and you can pretty much tell whether your rifle is really worn or a nice tight muzzle. if the rifle is counter bored the whole bullet will fit inside the muzzle up to the neck of the round.

This thread made me think of my M44s. I've never checked them. I see rifling to the end of the barrel. It's worn like the second image, not completely smooth.

Where I'm confused is with the ammo I used. At first I used the Hungarian surplus to gauge the muzzle. It looked alright. Then I used What I think is Yugo? And It looked like crap...ate the round. Why such a huge difference? I can see rifling to the end on both barrels.

M44's Both Izzy 1944

Hungarian Ammo

Other Ammo (Yugo?)

[Robidouxs]

That's quite puzzling that both ammunition types, Hungarian and Yugoslavian, exhibit different levels of penetration in the barrel. I wonder if non-surplus 7.62x54 would provide an even different result.