This is pure speculation on your part. MPI can not find a bad alloy, it can simply find stress factures or cracks in a metal.I think the dod had this done after H&R and winchester had a batch of bad bolt w/ wrong alloy steel.. had some bolts blow up. Used magnetic comp to find the bad alloy..marked the bolts after testing.. B2B
From M14 Rifle History and Development Fifth Edition:Was this bad batch -
A one-time, short-term incident? I see a good number of bolts electro-penciled 'M', & I am noticing quite a few w/o the marking. Was MPI the rule, or the exception?
You know good and well they don't and can't. Private concerns who manufacture boutique speciality parts for the M14, simply don't have the deep pockets or the where with all of a government arsenal or contractor to apply to the project. I too plan to stick with US GI bolts until the newly manufactured bolts have a decent track record for reliability/durability and meeting the specs.Interesting in a good way that TRW is never mentioned.
Now I have a real concern: Do current bolts made by SAI, Fulton Armory, LRB and soon to be made SEI, have these kinds of exhaustive tests?
If not, I'm sticking with USGI.
Commercial bolts can be made very well. However for a commercial manufacturer to stick to the government requirements would put the price in the stratosphere. Imagine if every commercial M1A was produced with the same methods as 1959-63. A rifle would probably go 5-10 times the current pricing.Do current bolts made by SAI, Fulton Armory, LRB and soon to be made SEI, have these kinds of exhaustive tests?