I think that it's because the die has to be designed to fit "tight" chambers, and it's best to have its initial adjustment set such that it can't be misinterpreted. The same die can then be adjusted out for larger chambers by "advanced" reloaders. Imagine the number of "broken" dies, that would be returned as faulty if it was otherwise.
Too much pressure?
- Thread starter LUTNIT
- Start date
I think that it's because the die has to be designed to fit "tight" chambers, and it's best to have its initial adjustment set such that it can't be misinterpreted. The same die can then be adjusted out for larger chambers by "advanced" reloaders. Imagine the number of "broken" dies, that would be returned as faulty if it was otherwise.
- Location
- Ottawa origanally Muskoka
I find it curious that the two ejector marks be so equally spaced between the two cases.
I do however note that a factory FC case would have red or blue lacquer around the perimeter of the primers.
If it was a factory ammo issue we would probably have 4 or 5 new threads on here about Federal Crap ammo. This leads us back to either gun or improper reloading practices.
As noted there seems to be no case bulges or apparent web exposure to indicate a poor semi lock up or an oversized chamber.
The leaking, flowed primers and yet radiused perimeters is perplexing.....If a primer were (red/green) loctited in place (excess wiped clear) and the case over pressurized could the radius be preserved whilst flowing the primers base into the firing pin hole?
If starting pressure loads were being used and an oversized primer pocket was used simultaneously could this occur? I personally have never finger seated primers before so can only guess. I will say that I have tossed a number of FC brass after the first (factory) firing.
Was there significant sooting of the case necks and shoulders prior to cleaning?
I wonder how the cases measure up dimensionally to 308 chamber specs?
I do however note that a factory FC case would have red or blue lacquer around the perimeter of the primers.
If it was a factory ammo issue we would probably have 4 or 5 new threads on here about Federal Crap ammo. This leads us back to either gun or improper reloading practices.
As noted there seems to be no case bulges or apparent web exposure to indicate a poor semi lock up or an oversized chamber.
The leaking, flowed primers and yet radiused perimeters is perplexing.....If a primer were (red/green) loctited in place (excess wiped clear) and the case over pressurized could the radius be preserved whilst flowing the primers base into the firing pin hole?
If starting pressure loads were being used and an oversized primer pocket was used simultaneously could this occur? I personally have never finger seated primers before so can only guess. I will say that I have tossed a number of FC brass after the first (factory) firing.
Was there significant sooting of the case necks and shoulders prior to cleaning?
I wonder how the cases measure up dimensionally to 308 chamber specs?
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You and me both it has been informative, I was at the range yesterday and showed the casings to all the experienced shooters as it is a great topic. all concluded as the other guys on this thread. head space. I have had head space problems before and never had this and I reload a lot of very different rounds. from my model 700 in 7 rem mag and 22-250, others ,458, 6.5, 8mm .310 greener my most problem round for a martini. I really push brass, I make .222 out of .223 brass, 8mm Mauser out of 30-06, 310 greener out of nagant and 32 brass. that is the fun of reloading. but since you did this article I am going to look for this, lol TY
You can take it from an expert on pressure signs in brass, these photos are not from a high pressure related problem. The primer will ALWAYS flatten in an over pressure condition. I have also experienced low and moderate pressure headspace situations and the primer is again flattened somewhat as it is reseated after initially popped out from excess headspace. In my opinion this is an extremely soft brass problem, whereas the brass is flowing before the primer cup is even flattening. Could be an over annealing situation or just garbage FC brass, accompanied with a rifle with some serious boltface issues.
This why I stick to Win, Lapua and Norma as first choice brass with R-P as a second choice and don't use anything else.....except military in 308 based cases and LC in my 50.
This why I stick to Win, Lapua and Norma as first choice brass with R-P as a second choice and don't use anything else.....except military in 308 based cases and LC in my 50.
Yes, a very interesting thread OP.
I came in post 6 with ...
Insight from members here has been enlightening.
Although, suffice to say ... I hope to hell never to see a case looking like that come outta one of my guns .. LoL!
I came in post 6 with ...
Insight from members here has been enlightening.
Although, suffice to say ... I hope to hell never to see a case looking like that come outta one of my guns .. LoL!
I'd agree with that synopsis. Also something not right in the boltface.
