Hey Glenn
First of all, you know I am not a gunsmith, nor do I play one on TV
This is the Low wall I showed you down at Effingham last year, pretty scarred up from rough handling but basically sound and tight, I have seen gravel roads that looked better than the inside of the barrel however.
After experimenting with relining, I had it rebarreled earlier this winter, and after getting it back and reassembling, I shot it about 20 times and the extractor broke right where the firing pin hits the extractor, (and it was smacking the extractor pretty good but I do not believe the firing pin was messed with(what do I know, see first sentence))
OK, the guy who rebarreled it just happened to have an extractor so I got out the Prussian blue and very carefully filed and sanded till I got the extractor to fit.
Then according to what I was told I very carefully heat treated the new extractor (I have made several knives over the years so heat treating is not new to me) and was ready to start winning 22 silhouette matches, after firing for three times the new extractor broke right where the old one broke.
This is why I was so interested in the thread JDSteele had commented in regarding firing pin protrusion and then later about cases splitting in low wall 22's (before rebarreling, after firing the cases always had some bulging in the extractor area)
If I can find another extractor, I will fit it using JDSteele's method descibed in another thread, I will not heat treat it, and I will insure the firing pin no longer hits the extractor, If it happens again I will know the rifle is cursed and either have an exorcism performed or remove it from my presence permanently.
A simple low wall bought for a little bit of nothing should not be this much trouble.
What say you
Gary