changing barrels question.

[scissorhands]

I have an old .243 savage hunting rifle, I am wanting to get a new barrel put on it. Can I just buy any 6mm barrel ( currently looking into the 6br) and thread it on and check headspace then go shoot. Using the same bolt?

[muzzlebrake]

Bolt face must match the cartridge base.

[BLACKFINTURKEY]

Needs to be a prefit barrel that’s chambered in said cartridge or you need to get a black and have a smith ream it to the cartridge.

After that it’s as simple as removing old barrel. Get a set of go/no go gauges for the cartridge your changing to set the headspace and torque barrel to spec.

As mentioned the bolt face must match the cartridge diameter. You can get new bolt heads and swap them very easily if it’s not the right one.

[TexEnv]

You should be able to go to any cartridge with a .470 bolt face diameter which 6BR is. I recommend Shilen (Texas based company down in Ennis) for savage pre-fit barrels. I would want to get one short chambered then have a gunsmith do the finish chamber and install just to be on the safe side.

[muzzlebrake]

1:9 twist if you intend on shooting long heavy bullets. 105 to 115 grain.
Early model 6mm Rem had 1:14 twist and did not do well with heavy bullets although the velocity was on up there. When Rem changed it to 6mm BR it got a tighter twist barrel and became a long range gun for competition. Factory Remington 40-XB rifles were pretty good shooters.

[kmitchl]

With Savage actions with the barrel nut can be a DIY project. Lots of YouTube available.

[texasforever]

Yeah it’s the same bolt face. If you wanna do it at the house order up a prefit, go gauge, action wrench, barrel vice, and the right wrench for the barrel nut on the new one. Pretty simple process, just bust the old barrel loose, thread new one on there, go till it bottoms out on the go gauge, back off around 1/8th turn, put a piece of tape on the back of the go gauge and check for interference. Want to be able to close on go gauge and bind on go + tape. Snug the barrel nut up real tight and get to shooting!


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[texasforever]

Go with a 1:7.5 twist, and shoot Small mag primers


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[fish4food]

Go with a 1:7.5 twist, and shoot Small mag primers


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What he said.

1:9” won’t stabilize 115’s. At least not D-Tacs. Doubt it would Bergers either.

[kmitchl]

This Works

I had a case head separation on my 260 Rem recently. It was on the third firing of Nosler brass. I checked the head space and it is within spec. I figure it was defective brass. So I needed to get the remainder of the case out of the chamber. I saw a YouTube video that suggested using epoxy putty, the stuff you cut off a roll and knead to mix. I cleaned the inside of the case with a chamber brush and acetone. Plugged the neck of the case with a foam ear plug. Packed the case with epoxy making sure it was only in the case. Let it sit for two hours and tapped the case out with a cleaning rod. I was a bit skeptical initially but it worked well.