re-chambering 30-30 to .307

[Chuck from arkansaw]

I was thinking of buying an older 336 in 30-30 and re-chambering to 30-30 AI.  Load data seems scarce and may reconsider and go with .307 instead.  There always seems to be Marlin barrels in 30-30 on e-bay or auctionarms, so you could always go back if you wanted.  I am seriously considering buying a .307 reamer.  Any reason this project would be a problem?

[John Traveler]

How do, chuck!

Yes, there is a big problem with rechambering an existing .30-30 Winchester rifle to .307 Winchester.  The .307 Win chamber will accept a .308 Winchester round, and some unknowing soul could do just that, and get some real problems (stretched action, bulged chamber, excessive headspace, etc).

The .307 Win in factory rifles is built on beeffed-up frames and will contain the higher pressures (and recoil) of the improved cartridge.  Rechambered .30-30 rifles will not hold up to it.

[Enforcer]

Hold up that is not true.SSK,Nonneman,Richey's Sporting and many,many others are doing these conversions with no problem.Go to Marlin Talk,M336 post.There are literally hundreds of guys that have had the same thing you are talking about done.Shot hundreds of hot handloads in 307Win thru their converted 30/30s.

[Leftoverdj]

Forget the .307 reamer. A .308 reamer will do just fine. You've already got the rim cut which is the only difference.  And your gunsmith will have a .308 reamer.

This ain't a diy job unless you have a lathe and some practice in getting barrels off Marlins and back on.

[lgm270]

Hey Enforcer:  Is it possible to convert my pre-64 M-94 Winchester from 30-30 to .307 Win?

[Double D]

Enforcer is talking about the Marlin being rechambered to 307.  The Marlin is a stronger action than the standard 1894 Winchester.

John Traveler is taking about the 94 Winchester Big bore action that was beefed up for the 307 round.

The standard 94 can be rechambered to .307, which  this gunsmith would decline to do for safety reasons. The action wouldn't last long, it's just not strong enough in the right areas.

Leftoverdj is also correct about this not being a DIY project.

[Chuck White]

I think you guys are playing with fire!   LITERALLY!!!!!!

So many people trying to make a "super-magnum" out of a standard cartridge!

The 307 Win can (BY-THE-BOOK) handle just about the same loads that the 308 Win can!

I know we all want a "super gun" to an extent, but the way I look at it, why buy a rifle just to ream it out to a larger cartridge?  Why not just go out and buy a 307 Win, or if you want to go a little hotter, buy a BLR in 308 Win!

[shooter444002]

Been there and done that with marlin 30aw. Nonneman done the work and factory 307 ammo is sticky and too hot. I load it to 300 savage level in 308 brass and have no problems. Wish I would have left it as a 30/30.

[Ken in SENM]

Folks,

I have a NIB Winchester 94 AE XTR in the original box with all papers. It is in .307 Winchester caliber and is truly in as new condition. I also have 300 new .307 brass for this rifle. As far as I know, I am the second owner of the rifle, and I intended to use the rifle when I bought it. Circumstances have prevented me from doing so. I have decided to offer it for sale. If you are interested, please email me at : kthom@lcecnet.com .

I will ship this rifle to you, along with the new brass, in a hard plastic case in a cardboard box via USPS, insured and with tracking info furnished upon receipt of your payment in the form of a USPS money order. I will hold your payment until you receive and accept the rifle. If it is not in the condition that I describe, you may return it to me, at your own expense, and when I receive it back in the same condition that it was in when I sent it to you, I will send your money back.

I will do this for $450.00 to anyone who lives in the lower 48 states, and who will furnish me with a copy of a picture ID, preferably driver's license, that lists name, date of birth, and street address. If you have other questions or suggestions, please direct them to me at the above email address. That is my address at my place of employment, so I will only respond to emails during normal working hours. I will take emails in the order in which they are received, but the first statement that a person will buy the weapon will be honored over the first post with a question. I don't know how to be fairer than that.

Thanks for looking. This is truly a nice rifle, and I think it would be a very nice using rifle. I am pretty firm on the asking price, but I will entertain any offers. I can send you a digital picture if you request.

Regards,
Kenneth Thompson
Tatum, New Mexico

[Danny]

Email sent

Danny

[Ken in SENM]

As I am sure all of you are aware,  an original copy of your FFL license, or your dealer's license will also be required before I can ship the Winchester 94 AE XTR rifle in .307 caliber to you (please refer to my post above). Such would not be required for an in-state transaction for me, but any out-of-state transfer would require you to have an FFL holder receive the rifle and transfer it to you.

Sorry if my post above caused any confusion in this matter. If you are seriously interested in owning a very nice .307 Winchester, I am sure we can make this transfer work out. Thanks for your interest.

So long ... Ken in SENM

[Ken in SENM]

Good morning to all,

Please be advised that the Winchester .307 rifle I posted for sale above has been tentatively sold. If the deal should not make for some unforeseen reason, I will let you know. Otherwise, consider the rifle sold and thanks for looking.

So long .. Ken in SENM

[nfmMike]

I was thinking of buying an older 336 in 30-30 and re-chambering to 30-30 AI.  Load data seems scarce and may reconsider and go with .307 instead.  There always seems to be Marlin barrels in 30-30 on e-bay or auctionarms, so you could always go back if you wanted.  I am seriously considering buying a .307 reamer.  Any reason this project would be a problem?

Chuck - you really ought to consider the 30-30 AI. There is alot of data out there, you just have to find it, and the data I have come across has been worked out having fun. The folks that wring it out seem to really like the cartridge.

Just a thought.