Yes Scott it is.
Not for the meek and mild either but I'm getting the process sorted out.  Carnage has been substantial and there are a lot of junk pieces of 30-06 and several die bodies in my wake.  I did a brief post on it a while back with only a sliver of interest.  The swaging process I've worked through gives me a very heavy wall at the head so it'll be a substantially reduced load in this case, but it should be everlasting .
Here's pics of just a tiny bit of carnage followed by a couple of good ones next to a Peter's original.

GT

Did some more on the Ballard tonight, made a sliding extractor, the arm for it and started fitting it.  A little more to do yet.

Greg, how are you retaining the extractor on the Ballard? The Remington #7 has a screw in from the side, you doing something similar?
Bob

Looks like my year end project didn't end last year, but I did get a call from someone at C Sharps Monday to verify what type of crown I wanted on my Ballard #3F, and spacing for the scope bases! 
So should be on it's way to Al Springer by now for rust bluing and color case. Once it's here I'll fit the new forearm to the large heavy barrel and mount a spare scope for some ammo testing!

Had some wee hour free time last night, the dummy barrel stub is in and proven for the extractor.  All that's left is to fit the arm into the slot and notch the extractor (red arrow in the pic).   
Bob you had asked about retaining the slider? the tip of the arm fits into the slider and it's captured so motion is limited.  The extractor only has .180" worth of motion, enough for your finger to grab the case and remove it.

Greg, I thought that’s what you were saying.  Been thinking about this type of extractor for this Hepburn I’ve been working on, but been so tied up with all the other intricacies of the gun I haven’t spent much time thinking about it.  The owner of the original thinks I should make it with multiple barrels, which would be fun, but unless I chamber them all with the same family of cartridge I would need to completely disassemble the action to remove/install a barrel and change extractors.  The original is a 2 barrel setup, a 44 and 30-40 Krag.
Bob

It’s funny how when your writing something your mind starts thinking clearer.  After writing the above comment on the Hepburn’s extractor it got me thinking that the way the extractor is fastened into this action has me wondering, if with the breech block down, maybe the extractor can be removed.  The way this thing was designed it wouldn’t surprise me!

I try to stay on course, but fail frequently.  Here's my distraction tonight... The high wall 22 I've been competing with is kind of bland but it shoots well.  Here's spicing it up a tiny bit -  poured a pewter forend cap tonight, semi finished. 
The rifle is already heavy so I didn't want to add a lot of mass out there so I kept things small.