Im starting to think this barreled receiver is not of an m88.... I have searched high/low all over the worlds internet looking at them and not a single m88 is dovetailed, has the step, or curved bolt handle.
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First time I have read anyone claim a low number like 23. It seems highly unlikely to me they would tool up for a completely different receiver having a smaller locking lug, and reduce the diameter of the barrel for 23 guns as they already had dedicated ISU rifles. I really doubt a M70 in an M88 stock would be over weight, and I especially doubt it would weigh more then my BSA MarkV and the Tiaga-2.
Unfortunately.. what we dont know is what we dont know. I do know I have read alot of foreign internet pages and none of them suggest anything of the sort regarding changes such as this, and you would think it to be an important characteristic.
In addition, the stocks were made in Germany.
The stock maker's location is not relevant, is it?
if the barreled action my previous posts have shown is not an M88, then what is it?
As stated, I have seen just about every m88 ever posted on the web and NONE are like the mystery action. There is also a lot of chatter, but zero mentions of drastic changes as shown on the mystery action.
I would lean more towards it being something none of us are familiar with. How do we know thats not a S&L barrel used on some custom receiver?.
OR, it could be an earlier model that has been dovetailed with a drop-in trigger replacement. I see some bluing issues at the bottom area af the receiver, and is that a pinned barrel?
My thinking is that the vast majority of M88's included existing S&L M70/77 receivers and barrels, while a small number, perhaps a very small number, were made of new receivers and barrels. It's also possible that existing M70/77 receivers were simply modified for M88 use. All M88's are distinguished by the new stock configuration. Whether this is in fact correct is unclear.
It is indeed somewhat of a mystery, but over on RFC one poster said he had two like it and he understood they were the UIT 88 model. As for the suggestion that it might be a custom receiver, that notion can be safely dismissed. The receiver has the name Schultz and Larsen stamped on it, although the serial number is sufficiently low to only add to the mystery.
The M88 had a trigger improvement over its predecessors, of course whether it is the replacement that's on the mystery barreled action is unknown as of this time.
Schultz and Larsen clearly pinned at least some of its barrels. Here is one from a M70 or 77 that is pinned and below one that is unpinned. Barrel lugs also changed over time.
These M70/77 rifles are a mix of barrels, receivers, sights, triggers, and in even stocks.
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If that bottom one has the extractor on the left side of the bolt it pre-dates the M70's.