|
Forum Rules | Firearms Safety | Firearms Photos | Links | Library | Lost Password | Email Changes |
Register | FAQ | Calendar | Search | Today's Posts | Mark Forums Read |
|
Thread Tools | Search this Thread |
March 10, 2013, 09:49 PM | #1 |
Senior Member
Join Date: May 17, 2012
Posts: 1,085
|
Anyone Here Own a PE57 or STGW57?
I'm looking for information on the special chamber the Swiss put into these guns. In addition to the G3-style fluting, there's an extra step at the shoulder that aids function, but I have no clue on the dimensions. I have a really good reproduction PE57 barrel in 308, but I'm set on chambering the rifle in 7.5Swiss as was intended (and so I don't have to modify anything but the reproduction barrel).
From the fire-formed brass I've seen, it looks like the step could be cut into a standard 7.5Swiss reamer to get the needed profile. I've read accounts of fluting being cut with a simple jig and a diamond burr (slow, but careful) turning out excellent results. TCB
__________________
"I don't believe that the men of the distant past were any wiser than we are today. But it does seem that their science and technology were able to accomplish much grander things." -- Alex Rosewater |
March 11, 2013, 07:41 AM | #2 |
Senior Member
Join Date: November 20, 2008
Posts: 11,131
|
You might check Biggerhammer.net under the Sig AMT forum.
|
Thread Tools | Search this Thread |
|
|