07/13/2026
XM3 scope bases from IBA.
We've installed 3 of these now and basically none are the same. Were not talking .002" or .005". I can live/accept that.
Were talking "Minute of knotted string and a piece of chalk." (Sidewalk chalk at that, the BIG stuff)
Moving forward, if you want one of these installed by LRI, there will be a surcharge being added to the invoice because we have to completely rewrite and proof the program before we ever think about putting a tool to your receiver.
I have two in here right now that don't match each other, nor does the 1st one we did a short time ago. Kalyb just finished running the first one for today. It is fitted to the client's action as one would expect it to be. Out of curiosity, he went to grab the next one to see how it fitted. It rattles back and forth in excess of .045". -It is so bad that the scope base holes won't even allow for screws to be installed. Digging this rabbit hole deeper, we compared it to the first one we installed. It too is completely different from the ones here.
This particular job is for another shop. It's 4 actions being fitted up for the base. This is why I insist on folks sending us the artifact parts they want us to fit. Imagine if we'd received the actions and only one base. 4 actions with particular serial numbers to coincide with the period. If we'd been told to use the ONE base to fit all 4 actions, what would have happened when they got their parts back and went to assemble them for good?
3 of the 4 actions would end up being junk. Who's fault would that be and who would be man enough to stand behind it? As it's said, "Experience is not cheap."
Just to be transparent:
We are not installing these with a Bridgeport sporting a DRO and a wiggler edge finder. They are fitted with a VF2 4-axis mill using live, wireless, probing and a well vetted CAM system. We've installed # # of various keyed/clip slotted bases over the last decade with this machine.
Absurd!
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