what to rechamber a 30-06 to???

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farshot

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I need your suggestions. I have more then a few rifles. But I have this beater BRNO ZG-47 with a repaired action (soon) and a very good 30-06 bbl on it. It is not a "collectable" cause of the bubba damage to it

I dont want to change bbls - I want to leave it as 30 cal. What would be a good rechamber?? 308 Norma? 30-338? 30-06 Improved? 30-06-7mm? is there any other thoughts? or leave it as it is in 30-06?

Something new and novel may be cool also...
 
A belted case would require changes to bolt face and magazine feed issues.

The 3006 is pretty good as-is. An Ackley chamber would not add much. Modern powders add more power with heavy bullets than the original Ackley chamber.
 
ya if you don't want to change the barrel your stuck with a .30cal long action so a .36-06ai might be your only option but I'm no expert on the topic I also dont even know if there is a such thing as a .30-06ai.
 
I had a Win. 70 pre-64 in .30-06, had Bill Leeper AI it and it flew! Chrono'ed 180 NP at a fantastic rate, was an old Alpha Chrono, so I am not sure about the FPS. Like a fool I sold it for a magnum. Karl
 
I've had two 30-06 AIs, current one is a Whitworth Mauser. You will gain velocity, although not a huge amount, but what the hell: people here will threaten death and dismemberment over the same velocity increase between two similar cartridges (the whole SAUM vs. WSM debacle comes to mind). If it makes you happy, go for it. Might have to massage the feed lips a tad, and you'll need different resizing dies, but you won't be "Joe Average" on the firing line anymore, either. FWIW - dan
 
"...Why not?..." Um, a .338-06 uses a .338" diameter bullet. A 7mm uses a smaller diameter bullet. Going to either will require a barrel change. The 308 Norma Mag is based on the .338 Win Mag. Belted.
None of those would be any better than a .30-06. I'd leave it as is.
 
Shoot & play with it as is. Have done a few swaps over the years, and always wind up paying more than the end product was worth. Yes you will have something different & unique, but then when you try to sell it.........
Oh well, sometimes that's the price we pay just to have something "different",:p.
 
BTW when I said 30-338, or 30-7mm or like - I meant a 30 cal bullet in a 338 brass (really a Norma Mag) or 7mm brass
Not the other way around

I was hoping someone had some whiz bang idea that i could waste time and cash on

I did an AI of a 375 HH and it turned out to be a wonderful rifle with great gains - so great I keep thinking it will blow up! but it just worked out inthat rifle. 300 gr at 2850 ft/s (it could be more but I reduced it) and accurate in a Sako V Fiberclass -

so maybe just AI a 30-06 , then you can always shoot regular ammo too...
 
Get yourself some Reloder 22 or Vihtavuori N560 and try loading the 180 to it's potential in the 30-06. If the barrel is 24" or longer, 2850 is a realistic figure without excessive pressures. This makes the 06 a force to reckon with and means no oddball (read expensive!) dies, etc. I like wildcats as much as the next guy, but they are not for everyone. The 30-338 is a great chambering, but would require boltface and feed rail modifications. Ditto the 308 Norma Mag. Sunray made the statement that the 308 Norma Mag is based on the 338 case. Not so! It shares the base diameter and the belt, but the 308 Norma was an independent development from Sweden and the case is longer overall, and longer to the shoulder than is the 338. It is similar to, but not the same as, the 30-338. Regards, Eagleye.
 
Simplest is to go 30-06 Imp. Not the Ackley. Push the shoulder forward, leave a 1/4" neck and square up the sides. Load the crap out of it and it'll go fast. No alterations other than rechambering and 5 down. Wait didn't Mr. Gibbs do something like that?
 
I think the Gibbs is different. Longer to the shoulder, shorter neck. Way cool. I always wanted a Gibbs. If you want a wildcat, ANY wildcat, just do it. Don't let the nay sayers rain on your parade. Lets face it, if all guns were about practicality there would only be about three different chamberings. Make the gun you want, load for it, play with it, ENJOY it!
 
I have a few Gibbs chambered rifles, good cartridges, fiddly to make brass for. AI cartridges are much easier, just stick in the parent round and pull the trigger. If he wants to chamber to a 308 Norma, 30-338 (identical to a 30-7mm RM) or 338 Win Mag, he will be opening up the bolt face, massaging the feeding system, and in the 338's case, rebarreling or reboring the existing barrel. The 30-06 Imp (not Ackley) is generally thought of as the 30-06 Imp RCBS, 28 degree shoulder instead of 40 degree shoulder, basically. There are quite a few 30-06 Improved versions though, look through a copy of Ackley's book sometime, lot's of odd options. - dan
 
Rechamber a factory Barrel???

If you're convinced you want a different caliber, it's really not worth the money to rechamber a factory barrel. You may as well " bite the bullet" and buy a custom barrel and chamber to your new caliber, it will give you better accuracy.
Bill
 
dan belisle said:
I have a few Gibbs chambered rifles, good cartridges, fiddly to make brass for. AI cartridges are much easier, just stick in the parent round and pull the trigger. - dan
Click to expand...

I have a 30 Gibbs, and what Dan says is true. However, the Gibbs is way cool, and gives the 180 grain pill about 120 fps above the parent cartridge without insane pressures. I find that using the 35 Whelen case as the basis for my Gibbs eliminates a lot of the hassels of forming brass, since when I run the 35 Whelen case into the Gibbs die, I automatically have a small shoulder to headspace the new case on. Firing it now with a powder charge & bullet or with the COW method gives me a perfectly formed Gibbs case every time.
Regards, Eagleye.
 
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