is there any drawbacks in converting 30-06 to 8x57? like short neck in case of .270?
i’ve been having an itch for a mauser caliber rifle but ammo supply are my reason to stay away from them
what to do when resizing casings to different cal. with factory markings
- Thread starter rhino519
- Start date
is there any drawbacks in converting 30-06 to 8x57? like short neck in case of .270?
i’ve been having an itch for a mauser caliber rifle but ammo supply are my reason to stay away from them
None that I've found. I have pails of 30.06 brass and very little 8x57 brass. I've got 3 loads into them and no problems so far.
The link below is a video of us reshaping them.
https://www.youtube.com/watch?v=U1-Fs1LUll8
- Location
- WMU247 near Edmonton
I've sized 30-30 to 219 Wasp and 7 Waters, and 32-20 to 310Cadet, and I'm working on a project that will use 22Hornet shortened and necked to 25 cal.
its really no big deal sizing up or down you just have to keep in mind that someone might pickup your cases, hopefully they are smart enough to look carefully.
I've seen 30-30 fired in 303... not a good thing for accuracy.
But for 270, I have a bunch of brass and I don't own a 270, I also have a bunch of 30-06 brass and don't own anything in 30-06. If I was desperate for 25-06 brass I would not hesitate to take the 270 and neck it down.
Same issue for my 325WSM, brass is hard to find, I would not hesitate to take 300WSM and neck it up, but I bought 400 325WSM cases so that should do me for life.
one thing to watch when necking down is the thickness of the brass, you might need to turn the necks to thin it, not an issue when necking brass up.
its really no big deal sizing up or down you just have to keep in mind that someone might pickup your cases, hopefully they are smart enough to look carefully.
I've seen 30-30 fired in 303... not a good thing for accuracy.
But for 270, I have a bunch of brass and I don't own a 270, I also have a bunch of 30-06 brass and don't own anything in 30-06. If I was desperate for 25-06 brass I would not hesitate to take the 270 and neck it down.
Same issue for my 325WSM, brass is hard to find, I would not hesitate to take 300WSM and neck it up, but I bought 400 325WSM cases so that should do me for life.
one thing to watch when necking down is the thickness of the brass, you might need to turn the necks to thin it, not an issue when necking brass up.
The biggest danger is if you reform and shorten a case to a cartridge with a larger diameter bullet which may be able to be chambered in a rifle chambered for the parent cartridge.
One such case is 270 Winchester cut down and formed to .308 Winchester. These will chamber in a .270 and a novice shooter may not notice the cartridge looks "odd". A CRF rifle can hold these shortened cases against the bolt face tight enough the primer will light if the trigger is pulled. Trying to swage down a .30 calibre bullet to .277 in a rifle bore may prove to be exciting.
One such case is 270 Winchester cut down and formed to .308 Winchester. These will chamber in a .270 and a novice shooter may not notice the cartridge looks "odd". A CRF rifle can hold these shortened cases against the bolt face tight enough the primer will light if the trigger is pulled. Trying to swage down a .30 calibre bullet to .277 in a rifle bore may prove to be exciting.
- Location
- Western Manitoba
Is not just a "CRF" thing - I believe that a 308 Win will headspace enough, to fire, on the body taper within the chamber of a 30-06 - not sure if that is same taper as on a 270 Win body - but it means that a 308 Win will likely fire, regardless of action type, in a 30-06 chamber. Is various writings on Internet that say that may or may not have been a deliberate design thing when USA was changing over from 30-06 to 7.62 NATO - one version was that a Marine could still fire his 30-06, even though Supply had dropped off 7.62 NATO - hopefully they got that sorted out, because I do not think it would work if 5.56 NATO dropped off with M14 equipped guys.
Some case conversions don't matter too much, if they physically won't chamber in the original chambering that's enough. For the rest I use a center punch on the factory markings, just enough to be noticed if you look but not so deep that it affects case integrity. Magic marker a stripe around the case base too.
That's probably enough. The marker does wear off if you handle it much. Probably also should take pains to keep the altered ammo in a separate, well-labelled container . Labels don't need to be fancy but should be highly visible.
that will be considered when i’m in a camp with people shooting 30-06, most of the year though i travel solo
