NTSOG wrote: I understand quite a few bolts have broken. No specification for tightening with a torque wrench is given so I have mine [carefully!!!] tightened to about 15 in pds. That's probably alright on a .22 magnum, but might not be sufficient on a more powerful rifle.
Jim
I was talking to the gent that owns the Mechanical repair place I have known for years,, only last week, when he mentioned bolts.
He is thoroughly p!ssed off at the quality of bolts now on offer in Australia.
He says it's damm near impossible to get good quality/reliability anymore.
One of the biggest problems apart from a lack of tensile strength he says is,, that the hex head flats actually taper so that a ring spanner or socket
will tend to rise upward as tension is applied with the result of slipping off.
To demonstrate, he got a "new" bolt out of a box and held it upright,,,, and when looking closely I could see that what he said was correct.
Praps the bolts out of the PARD mounts could be replaced with better quality,, ie: Made in USA or England as opposed to China ?????
I do not fear death itself... Only its inopportune timing!
I've come to realize that,,,,, the two most loving, loyal, and trustworthy females in my entire life were both canines.