"hangfires" / Delayed Ignition
I'm loading for a .300 Win Mag. I use a domestic South African powder (S385) that gives me the best load density, with 210gr Berger VLD's.
The charges are 68.5gr - 68.7gr for 2800-2850 fps. It's a stick powder.
I've used the Federal #215 (LR Mag) and found that I got lower SD's and better accuracy with WW LR and CCI LR (neither are magnum primers).
So far so good. But twice now in 100 rounds or so with the CCI's I've had a perceptible hangfire. Just a split second, but enough to have me start lifitng my head in a "what??!!" and have BANG!!! So much for decent follow through!
Any ideas on a fix?
I haven't figured out the load density, but the case is filled to probably just a whisker below the shoulder if I recall. According to Somchem (powder manufacturer) the "bulk density" in g/dm cubed is 930 and the "VMD factor" proivded is 0.0697 cc/gr (if that helps anyone any).
Could I try a filler like corn meal in the case? How would I approach it? I'm assuming this is a load density issue, but maybe it isn't. The case really is full enough for me to actually not have expected a problem.
I'll look for WW primers again (what I had was from my dad's stock and is probably at least 15 years old). We aren't exactly spoilt for choice here in SA.
Thanks for any input and suggestions.
Last edited by LRHWAL; 08-13-2007 at 03:50 AM..