Dave K said:
...I have had a sear fail and the gun had such I high 1/2 cock, that it fired. Fortunately the gun was pointed in a safe direction. ... I experienced 3 broken sears at 1/2 cock(not all my guns) over a 3 weekend period.
I did a lot of load workup and duck hunting with the Pedersoli 12 gauge, and traded up to the stouter pistol grip version 10. With full disclosure to the buyer, I sold the 10 because I did not trust the sears. I had the nose on both sears chip without any abuse or undue pressure, and this after expensive repairs for the same issue. The sears are cast, and very hard. I seem to remember a 1/2" drop from half-cock.
For duck hunting from a blind, the situation was 'OK', as I could be careful not to catch the hammers on anything. But I usually get out of the blind by 10AM, slap on an orange vest, and go chase pheasants. Wild pheasants, and non-pointing labs mean some VERY fast walking. If I take a header, I will control the muzzle, but I can not guarantee control of how or what the hammers might hit on the way down.
I regret selling the 10 gauge, and not having put more effort and $ into finding a solution. The Pedersolis, new or used, have not come down in price.
Inspect those sears, make sure they are not chipped, and the hammer notch is properly cut. Carry it hammers at half cock.