I am reloading for a PTR91 308 win and needing some advise on several issues. I currently reload for a 308 win bolt action and have not run into this issue of case seperation.
Load data was taken from Hornady 9th Edition manual using a case length of 2.015, 47 grains of CFE223 using a 150 gr Hornady FMJ BT bullet with an 2.700 COAL. The brass was once fired, ( purchased) cleaned, annealed, FL sized, cleaned then trimmed to 2.015. Firing from a PTR91. The 47 grain charge is a middle if the road charge (2650? velocity range) with 49.6 being MAX.
This rifle is great but probably the hardest I’ve seen on any brass. Deformed necks, dents and fluting and ejects the brass very violent. I experienced a case separation which could have been a fluke. The fired brass cases OAL was all over the place from 2.015 to 2.047 with the majority falling between 2.022 to 2.034. Trying to figure out an OAL to resize the brass to so not to overwork it.
Should I change powder to a faster, smaller charge? I have H335, TAC, Varget, IMR 4895, 4064... I choose CFE223 because it meters well in the DIllon Press. For the most part, these are tfor just target load purposes.
My concern is why some much case stretch and wanting to avoid another case seperation.
Load data was taken from Hornady 9th Edition manual using a case length of 2.015, 47 grains of CFE223 using a 150 gr Hornady FMJ BT bullet with an 2.700 COAL. The brass was once fired, ( purchased) cleaned, annealed, FL sized, cleaned then trimmed to 2.015. Firing from a PTR91. The 47 grain charge is a middle if the road charge (2650? velocity range) with 49.6 being MAX.
This rifle is great but probably the hardest I’ve seen on any brass. Deformed necks, dents and fluting and ejects the brass very violent. I experienced a case separation which could have been a fluke. The fired brass cases OAL was all over the place from 2.015 to 2.047 with the majority falling between 2.022 to 2.034. Trying to figure out an OAL to resize the brass to so not to overwork it.
Should I change powder to a faster, smaller charge? I have H335, TAC, Varget, IMR 4895, 4064... I choose CFE223 because it meters well in the DIllon Press. For the most part, these are tfor just target load purposes.
My concern is why some much case stretch and wanting to avoid another case seperation.