07-20-2018, 05:29 AM
Forgive me if I'm wrong but I get the impression some don't know how to deal with those chamber dimensions.
The 264 LBC is good if it is within 1.2201" to 1.2251", a tolerance of .005".
The other two are 1.2201" to 1.2301", a tolerance of .010", anywhere within those ranges is within spec tolerance.
Another thing to consider is that there must be some spring-back of the case, so they should measure shorter than the chamber when they cool. I would expect a case to measure at least a couple thousanths shorter but have never seen a scientific study.
The 264 LBC is good if it is within 1.2201" to 1.2251", a tolerance of .005".
The other two are 1.2201" to 1.2301", a tolerance of .010", anywhere within those ranges is within spec tolerance.
Another thing to consider is that there must be some spring-back of the case, so they should measure shorter than the chamber when they cool. I would expect a case to measure at least a couple thousanths shorter but have never seen a scientific study.