26 June 2010, 00:16
10,3x60rWhich metal?
My store has the following leagues:
-CuZn39Pb3 (brass)
-Cu-ETP (copper)
-CuSn7Pb6Zn4 (bronze)
This for making a new bullet in .413 for caliber 10,3x60r bullet gr 240 approx.
Velocity final charge I think
850 m/s (2788 ft/s), barrel lenght 65 cm.
26 June 2010, 13:31
10,3x60r...sorry I forgot the question

whichever works best?
27 June 2010, 03:24
collaniHi Massimo
Please drop me an eMail. I could help You.
Good shooting and good hunting.
Collani
http://www.gian-marchet.ch29 June 2010, 12:28
Lefteris VassiliadisCuZn39Pb3, also called free machining brass, has the best machining characteristics.
Lefteris
http://europeancartridgeunlimited.com29 June 2010, 23:32
10,3x60rquote:
Vassiliadis
The CuZn39Pb3, this league have told me but leaves many residues in the barrel is correct?
30 June 2010, 12:25
Lefteris Vassiliadis10,3x60r,
Don't now for sure. We use it as it is (half hard condition, 120 Brinell) for making shotgun slugs that are enclosed in a sabot.
Try to anneal at 60-70 Brinell to see what happens.
Lefteris
http://europeancartridgeunlimited.com