7.62x54R chamber reamer

[DTM Builder]

About 6 months ago I bought a 91/30 from Classic firearms. the rifle was in excellent condition and the barrel looked to be unfired. One small glitch, in about half the the shells I fired it would leave a scratch or gouge in the shoulder area, and the other half would crack right there. I didn't save a fired shell casing to photograph so I put a mark on an unfired shell with a sharpie marker where the scratch or split would occur. Only on what I would call the shoulder area and never down the neck.

I tried several times to get a photograph of the small bur in the chamber that would cause this. I could see it in just the right light but it was impossible to photograph.

I knew It needed just a kiss with a chamber finish reamer. I called a couple of local gunsmiths and neither one had one on hand. One told me he could rent one, and after looking on line a chamber reamers dot com and saw where it would be about $60 just to rent. If he charged me anything on top of that I was probably pushing the $100 mark, maybe more counting gas for two trips. One to drop off and one to pick up. So I just bought one for ~$120 and did it myself.

Now my question, what do I do now with this $120 drill bit. Try to sell it or let folks "rent" it for like $10-$15 to do their rifles. I would hand it to them, and let them do their own gun. I would never touch someone else's gun I am not a gunsmith.

What do you think?

Oh and here is a pic of the 91/30

 

[whiskerz]

It is not unusual for Mosins to split cases . does your gun still split cases after reaming it ?

 

[DTM Builder]

Haven't shot it yet. I could see the bur, and now its gone. The bur would leave a scratch or, like cutting glass, the scratch would be where the split would happen. I hope that took care of it. The M44 would not split the cases. I did check the head space on both guns.
Looks like the rifle was re barreled and put in the grease, probably never test fired. The rifling looked brand new when I got it.

May be an overreaction on my part but I am just a bit anal. Was not liking the split cases and was about to turn it into a wall hanger. I figured it would be worth a try anyway.

 

[Mike Aumick]

Haven't shot it yet. I could see the bur, and now its gone. The bur would leave a scratch or, like cutting glass, the scratch would be where the split would happen. I hope that took care of it. The M44 would not split the cases. I did check the head space on both guns.
Looks like the rifle was re barreled and put in the grease, probably never test fired. The rifling looked brand new when I got it.

May be an overreaction on my part but I am just a bit anal. Was not liking the split cases and was about to turn it into a wall hanger. I figured it would be worth a try anyway.

Haven't shot it yet. I could see the bur, and now its gone. The bur would leave a scratch or, like cutting glass, the scratch would be where the split would happen. I hope that took care of it. The M44 would not split the cases. I did check the head space on both guns.
Looks like the rifle was re barreled and put in the grease, probably never test fired. The rifling looked brand new when I got it.

May be an overreaction on my part but I am just a bit anal. Was not liking the split cases and was about to turn it into a wall hanger. I figured it would be worth a try anyway.

 

[Mike Aumick]

Haven't shot it yet. I could see the bur, and now its gone. The bur would leave a scratch or, like cutting glass, the scratch would be where the split would happen. I hope that took care of it. The M44 would not split the cases. I did check the head space on both guns.
Looks like the rifle was re barreled and put in the grease, probably never test fired. The rifling looked brand new when I got it.

May be an overreaction on my part but I am just a bit anal. Was not liking the split cases and was about to turn it into a wall hanger. I figured it would be worth a try anyway.

Haven't shot it yet. I could see the bur, and now its gone. The bur would leave a scratch or, like cutting glass, the scratch would be where the split would happen. I hope that took care of it. The M44 would not split the cases. I did check the head space on both guns.
Looks like the rifle was re barreled and put in the grease, probably never test fired. The rifling looked brand new when I got it.

May be an overreaction on my part but I am just a bit anal. Was not liking the split cases and was about to turn it into a wall hanger. I figured it would be worth a try anyway.

I don't know why I downloaded 2 pictures

View attachment 2786654 View attachment 2786654

I don't know why I downloaded 2 pictures but this is a long range shooter I built from a Mag pul op 4 kit, 2 Mosins that didn't match numbers, and a Finnish m-39 barrel. I still have to deepen the chamber ( M-39s fire a 7.62 by 53r cartridge}. I wish I could use your reamer, but there are 2 problems. First being the depth of cut.I have to go down 1mm =.049" and the Finns hardened their chambers. Both problems are solved with a carbide reamer. Unfortunatly, yours looks to be high speed tool steel and won't cut hardened steel

 

[Kahrnut]

WTH

 

[fast306stang]

LMAO

 

[Fred Dallyn]

I am building a heavy barrel Mosin using a1919 machine gun barrel in 30-06. If your reamer is up for grabs, let me know.

 

[Kahrnut]

 

[Linachaw]

I've had split necks in all of my mosins. It wasn't because of the chamber, it was because I was shooting 1950's Bulgarian light ball.