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I shot all my factory stuff up long ago and I need the factory measurement to the datum line of Remington Core Lokt specifically. I suppose any other factory case will suffice. I am doing a bit or research and don't want to buy a box for a simple measurement. Looking for an average.
I appreciate your help.
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Thanks but that isn't what I am looking for.
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I understand what you're looking for, but why? Just curious.
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Curiosity for the most part. I am just comparing factory loads to my once fired and sized brass. I just want to know how much tolerance is out there for factory stuff. I was told Rem brass is or can be short at the datum but I never had a misfire with factory core lokts. But I never pulled any to measure before I shot them up for the brass.
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TC Encore. Measured head space on once fired averages 1.970 curious what the factory stuff is actually sized to.
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This probably won't help you much but did some measuring on some factory Federal and a case fired from the same lot fired in my Mauser 1970's no name barrel. Anyway, Federal measured across the case at the datum .435 and length from the datum 1.942 My fire formed case expanded to .442 across the datum and pushed my shoulder back to 1.932 Personally, I neck size everything possible and only grab a FL die to bump the shoulder back on occasion. I've never loaded for a TC but my Ruger no.1,Nef's,bolt guns, and even one AR-15 gobbles up neck sized only cases.
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Thanks for the information.
Yeah I worked up my load with partial sizing without bumping the shoulder since I do not have a neck die for it. I just finished a batch just bumping the shoulder back to equal the frame gap. .001
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Out of my Hornady LNL tools I get an average for 12 rounds of 1.964. With 1.965 the longest and 1.963 the shortest. Remington 200gr. Cor-lokt. If its any help I was having some issues with misfires with my M77 Hawkeye and rented GO/NO-GO gauges and they measured GO at 1.963 and NO-GO at 1.970
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Out of my Hornady LNL tools I get an average for 12 rounds of 1.964. With 1.965 the longest and 1.963 the shortest. Remington 200gr. Cor-lokt. If its any help I was having some issues with misfires with my M77 Hawkeye and rented GO/NO-GO gauges and they measured GO at 1.963 and NO-GO at 1.970 Thank you! Exactly what I needed.
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I had an early box of Remington factory load 250 gr. RN ammo that had a headspace problem, it had at least 0.005" more headspace than later loads by Rem or Federal. The shoulder looked less distinct to the unaided eye as well. I had misfires using those shells in a custom Ruger #1 that had a long chamber, but my M700 classic could digest them, barely.
I wonder - Can someone else measure to a "datum line" and give you the measurement accurately for your rifle? The equipment / measuring technique would play a role in accuracy of the measurement I would think. I use a set of the old Stony Point (later acquired by Hornady) headspace gauges and my calliper, but none of the SP gauges were specified for the .35 W so I used the one for the .30-06. Not sure if that was correct, but if I am consistent I figure I measure all cases the same it shouldn't matter.
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I had an early box of Remington factory load 250 gr. RN ammo that had a headspace problem, it had at least 0.005" more headspace than later loads by Rem or Federal. The shoulder looked less distinct to the unaided eye as well. I had misfires using those shells in a custom Ruger #1 that had a long chamber, but my M700 classic could digest them, barely.
I wonder - Can someone else measure to a "datum line" and give you the measurement accurately for your rifle? The equipment / measuring technique would play a role in accuracy of the measurement I would think. I use a set of the old Stony Point (later acquired by Hornady) headspace gauges and my calliper, but none of the SP gauges were specified for the .35 W so I used the one for the .30-06. Not sure if that was correct, but if I am consistent I figure I measure all cases the same it shouldn't matter. The Hornady version of the SP headspace guage lists the .420 bushing for the 35 whelen. .375 for all other 30-06 based cartridges including the 30-06. http://www.hornady.com/assets/files/catalog/2009/69-70_precision_gauges.pdf
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