17-308?

B

brouhaha

New member
I've been looking at getting a .17 Rem for the past few weeks just for plinking purposes. I got to thinking that out of a .223 case, the .17 reaches more than 4000fps. So, what would it be like out of a .308 case? Does this exist or has anybody ever tried it? What would the velocity be like with the standard 25gr bullet?
Any takers on this?
 
Thanks for the immense amount of insight, Art. :D

Any ideas of how many rounds you'd get out of the barrel before it's life was shot (pun intended)?
 
I have a buddy who had a buddy who had one...

What Art said. That, and it was very hard to keep bullets from self-destructing in mid-air.
 
That, and it was very hard to keep bullets from self-destructing in mid-air
Click to expand...

That's because of the centrifugal force on the bullet, right? If so, then why not just lower the twist rate of the barrel? I don't really understand a lot about this, so please correct me if I'm wrong. Also, is there no alloy available that would be able to stand up to the friction? Some sort of tefloned or moly'd barrel? Or are modern alloys just too expensive?
 
17-308

17-308? You have to be kidding. I have heard of expermenters trying a 22 caliber on a 30-06 case. The bullet exploded in the barrel.

Can you imagine a bb [25 grain bullet] moving at
6,000 to 8,000 feet per second. Lead melts at about 800 degrees. I would shoot a round like you are thinking about, from behind a tree.
 
Hey, don't knock the basic idea. After all, somebody built up a hotdog .22 on the .50 BMG. It was regarded as somewhat less than practical.

Early bullets for the .220 Swift would blow up on paper or leaves of grass; spinning too fast for the thickness of the jacket. A 1950 test with my uncle's .22-250 (then called the "Varminter") had a piece of cardboard set a few inches behind the 100-yard paper target. 40-grain bullet, loaded to "very fast". There was a .22 hole in the target; tiny holes and a lead wash on the cardboard. That was his "rough on rabbits" load.

Just guessing, a mostly copper (?) bullet for a .17-.308 could live through the stresses. Again just guessing, I'd say the throat life would be no more than a few hundred rounds. Just guessing.

Art
 
Played with 22/06 in late 40s....Bullets keyholed often...throat good for around a hundred rounds.....flame cut at muzzle which blew what accuracy it had. .25/06 was wonderful. .22/06 sucked.

Be fun to try it again with different powders available now and a really long barrel.

Cheap to sabot from .30 to .22 for playin. And if really bored, sabot from .50 to .30 to .22.

Maby make up some moly/delrin sabots for .17?

Sam
 
Thanks for all the replies

So, in effect, this would be a man portable rail gun? Maybe one day when I make it rich I'll look into this. Use some cash and make some solid copper bullets. Should be interesting. Anybody here with some cash willing to experiment?
 
Barnes already makes the copper bullets - oops! never mind - was thinkin' .22 cal

For expected velocity (5K+?), maybe a 1:20 twist or thereabouts.

Hadn't even thought about flame cutting at the crown .... :eek:

As lightning-like as this would be, it'd still be a .17 with all the attendant "non-performance" issues for much towards 300 yds = a puff of wind would sail it away + not much way of mass for BC at decent range.

Sounds like the old joke about sailboats = a hole in the water where I pour my money. ;)

Without someone willing to drop a few $ into findin' stuff out, we wouldn't have half the nifty shooters we now have though.
 
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