6mm remington question

DWalt said:
Way back when, I formed many .25-06 cases from .270 with no problems. As well as 6.5x55 cases. The latter worked fine, even though the base diameter of the .270 case was a little smaller than the 6.5x55 case. I have also formed many 7x57 cases from both .270 and .30-'06 cases. Were I forming 6mm Rem cases today, I would start with .270 or .30-'06 cases mainly because they are easy to get, but there are many other possible starting case choices.

It is a good idea to have both a case trimmer and a case neck turner if you plan to form your own brass. There also case neck reamers, but outside neck turners are preferred. Donnelly's case conversion handbook is a valuable resource for those interested. I have no idea if it is still in print.
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I think Donnelly died a number of years ago; don't know if the book is in print but used copies should be available. Perhaps the best of the conversion books is Ken Howell's "Designing and Forming Custom Cartridges For Rifles And Handguns" originally published in the mid-'90s, but I don't know about current availability.
 
I was in contact with Donnelly not long after his book was published. At that time, he already had plans for an updated edition. I can't remember when he died and don't know if the new book was ever completed or published. Perhaps what is available now is a second edition (?)

I've seen more than one report stating that his book contained numerous errors. I think it would be incredibly difficult to put together such a massive work containing so much detailed information and so many figures without mistakes. The book is still worth having as a reference source.
 
rockquarry said:
I was in contact with Donnelly not long after his book was published. At that time, he already had plans for an updated edition. I can't remember when he died and don't know if the new book was ever completed or published. Perhaps what is available now is a second edition (?)

I've seen more than one report stating that his book contained numerous errors. I think it would be incredibly difficult to put together such a massive work containing so much detailed information and so many figures without mistakes. The book is still worth having as a reference source.
Click to expand...
My copy of Donnelly has a 1987 copyright, so it must be a first edition, althogh it does not say that. It also has an inscription to someone and is signed by Donnelly. Those shown at Amazon and B&N have a completely different cover design than mine. Probably corrected and updated. While it is not in any way a reloading manual, it does have some reloading data. Sort of like COTW, also not a reloading manual, contains some reloading data.

BTW, if you have a nearby Ollie's store, they have COTW and the last two editions of Gun Digest for $10 each. At least the one near me does (or did). https://www.ollies.us/home.html?trk..._campaign=item&utm_content=20231003+Book+Item
 
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