Best LR .30 caliber on .473 bolt face

[pacowboy]

My cousin is looking to rebarrel a Rem 721 long action and is wanting the best .30 caliber he can put on this action. Not looking to change the bolt face. He is looking to match or exceed 300 Win Mag if possible. Just share facts and your experiences please. Please don't make this a ,,,,,, contest.

 

[JMW67]

I would think the 300 sherman should do it the easiest , get hold of elkaholic on here he will hook you right up

 

[FEENIX]

My cousin is looking to rebarrel a Rem 721 long action and is wanting the best .30 caliber he can put on this action. Not looking to change the bolt face. He is looking to match or exceed 300 Win Mag if possible. Just share facts and your experiences please. Please don't make this a ****ing contest.

A straight .30-06 with a 26"+ 1:9" (just my preference) is no slouch. Depending on what your cousin is willing and able to do i.e., wildcatting/fireforming. AI version is another consideration and probably the best improvement with the least amount of work. I have a .30 Gibbs (https://www.longrangehunting.com/threads/30-gibbs-is-finally-ready.242088/) that I am still developing loads.

Good luck!

Ed

 

[sierracharlie338]

@FEENIX

I'd be curious in performance between the AI and the 30degree show in the pic you posted or if there is any. That's an interesting and thought provoking post. Thanks

 

[del2les]

A few options:

30-06 long throat in a 24-26" tube. This allows the bullet to be seated out and allows more powder capacity. I have 2 of these and like them. Similar performance to a AI without fire forming: 165gr's at 3,000-3,100fps. 180gr's at 2,900fps

30-06AI with either SAAMI or longer throat.

30 Gibbs or Sherman. When you have to have it all use a longer throat.

 

[David Emerson]

Another option would be to neck up the new weatherby rpm case. Basically a 2 1/2 inch 284 case. In a 6.5 it has 80 grains capacity.

 

[Nomosendero]

Another option would be to neck up the new weatherby rpm case. Basically a 2 1/2 inch 284 case. In a 6.5 it has 80 grains capacity.

And that would be great IF good brass is Available at a sane price. I have a nice 30-06AI but the RPM would be a hoss!

 

[FEENIX]

@FEENIX

I'd be curious in performance between the AI and the 30degree show in the pic you posted or if there is any. That's an interesting and thought provoking post. Thanks

Sorry, I do not have performance measurement/comparison between AI and the 30 degrees but if you look at #148 on the hyperlink, you'll see actual load development thus far - pushing the 190 Berger VLD at 2800 FPS out of 24" barrel.

 

[sierracharlie338]

Sorry, I do not have performance measurement/comparison between AI and the 30 degrees but if you look at #148 on the hyperlink, you'll see actual load development thus far - pushing the 190 Berger VLD at 2800 FPS out of 24" barrel.

No worries I wasn't asking you for it, per se, just thinking out loud. Thanks again for sharing

 

[FEENIX]

No worries I wasn't asking you for it, per se, just thinking out loud. Thanks again for sharing

That's how the .30 Gibbs project got started.

 

[David Emerson]

And that would be great IF good brass is Available at a sane price. I have a nice 30-06AI but the RPM would be a hoss!

I bought some straight from weatherby yesterday. 35 for 20 plus freight. I am thinking neck to 25 with a 7 1/2 twist and blackjacks. Hmmmmmm?

 

[Pdvdh]

I would think the 300 sherman should do it the easiest , get hold of elkaholic on here he will hook you right up

Agree. Elkaholic will have good information on comparable performance, quality brass, and cartridge suitability for that action. Even if you choose a different cartridge, I'd start with Rich.

 

[Jud96]

Another option would be to neck up the new weatherby rpm case. Basically a 2 1/2 inch 284 case. In a 6.5 it has 80 grains capacity.

This would be awesome!

 

[FEENIX]

Deleted!