I recently purchased one of the "unissued" M48's that AIM had for awhile. I cleaned it up and took it to the range last weekend and had a rather large number of misfires with mil-surp ammo (Turkish) that has never misfired in my K98k.
Here's what I have done so far:
1. I measured the distance that the firing pin protrudes past the bolt face ... 0.060" ... my Mauser book seems to indicate .055 to .070 as acceptable.
2. I applied my post-it headspace check ... I take an unfired factory load and place layers of Post-it paper over the primer and see when it gets hard to close the bolt ... I know it isn't accurate in an absolute sense, but it does let me compare two different rifles in the same caliber ... and the M48 is actually better headspaced than the K98k that doesn't misfire.
Any ideas as to what my problem is? I didn't take the K98k with me last time, so I don't know if it was a temperature effect (it was cool but not COLD)
I'm kinda stumped here.
Thanks in advance
Saands
ps ... No ... I don't have any of the the original (misfired) primer strikes, although they were substantial. All but one of the rounds went off when I recocked and re-fired ... probably 10 failures out of 30-40 rounds.
Here's what I have done so far:
1. I measured the distance that the firing pin protrudes past the bolt face ... 0.060" ... my Mauser book seems to indicate .055 to .070 as acceptable.
2. I applied my post-it headspace check ... I take an unfired factory load and place layers of Post-it paper over the primer and see when it gets hard to close the bolt ... I know it isn't accurate in an absolute sense, but it does let me compare two different rifles in the same caliber ... and the M48 is actually better headspaced than the K98k that doesn't misfire.
Any ideas as to what my problem is? I didn't take the K98k with me last time, so I don't know if it was a temperature effect (it was cool but not COLD)
I'm kinda stumped here.
Thanks in advance
Saands
ps ... No ... I don't have any of the the original (misfired) primer strikes, although they were substantial. All but one of the rounds went off when I recocked and re-fired ... probably 10 failures out of 30-40 rounds.