Pressure Sign on Factory Hornady Super Performance
- Thread starter Hook'N'Bullet
- Start date
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Says you, you are well known within your club as a know all.you really have no clue!!
I just think it’s hilarious that you have posted an article (incidentally using hornady brass) showing the exact pressure signs evident on the majority of cases in the OP yet you then write it off as normal and commonplace.
Primer flattening is only one, often unreliable, pressure sign, the brass itself is more telling.
If you take the time to read the article apart from cratering the signs seen are as the 47 gr load in the article, where there is little rounding of the primer but ejector swipes and ring mark (plunger recess) are evident, as the photos, the 48 gr load saw catastrophic case failure.
The OP mentioned stiff bolt lift was not on every case, my money would be on the particularly stiff ones being those with shiny bits, where enough brass was pushed into the bolt recesses that it interfered with the bolt opening and the resistance was the bolt shearing brass off.
This is not normal and shouldn’t be expected, it is a clear sign that for that particular load, in that particular chamber that brass is about to fail. Coupled with wet brass, oily chamber or dirty bore the primer pockets could easily be pushed over and fail. Which is exactly the reason you gave for stopping using ammunition in a post above.
Hence the advice of stop using!!
I don’t know it all, you appear to know very little….
Or maybe you just need some glasses
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And maybe you need the award of all seeing eye, as I said you are well known in your club as a know all.I just think it’s hilarious that you have posted an article (incidentally using hornady brass) showing the exact pressure signs evident on the majority of cases in the OP yet you then write it off as normal and commonplace.
Primer flattening is only one, often unreliable, pressure sign, the brass itself is more telling.
If you take the time to read the article apart from cratering the signs seen are as the 47 gr load in the article, where there is little rounding of the primer but ejector swipes and ring mark (plunger recess) are evident, as the photos, the 48 gr load saw catastrophic case failure.
The OP mentioned stiff bolt lift was not on every case, my money would be on the particularly stiff ones being those with shiny bits, where enough brass was pushed into the bolt recesses that it interfered with the bolt opening and the resistance was the bolt shearing brass off.
This is not normal and shouldn’t be expected, it is a clear sign that for that particular load, in that particular chamber that brass is about to fail. Coupled with wet brass, oily chamber or dirty bore the primer pockets could easily be pushed over and fail. Which is exactly the reason you gave for stopping using ammunition in a post above.
Hence the advice of stop using!!
I don’t know it all, you appear to know very little….
Or maybe you just need some glasses
Stalker62
Well-Known Member
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