wisest.fool
Inactive
I blew up my Remington 700(308).
upon firing, case expanded into bolt face and damaged ejector and I was unable to remove the case without damaging the bolt face. Also damaged bolt handle banging it open with a hammer.
I realize this is my fault. I was shooting reloaded rounds I personally made. So I have messed up somehow. I would like to know how I messed up.
Facts:
-this was bullet #28 of 100 in the case.
-168gn eld-x
-42.5gn IMR 4895
-LC 16 brass (once fired by me at least)
-CCI #34 primers
-Primers on previous cases were flattened but not cratering.
-this is the same load I have shot hundreds of times.
-max charge for IMR 4895 for 168gn jacketed boat tail in my reloading manual states 42.5gn not compressed. Yes I am at the max for my reloading manual(lyman 49th edition). but not over.
-this firearm had about 1200 rounds through it. 75% +/- of those rounds were reloads.
Observations:
2 rounds were SLIGHTLY harder to chamber.
the round that had catastrophic case failure was not hard to chamber.
target was at 450M and previous group was around 8" which is pretty good for my admittedly amateur shooting.(after malfunction I did not go check the target. did check my pants... all clear)
Questions:
1. How did this happen?
2. Should I scrap the firearm or will a new bolt be a safe repair? No obvious signs of cracks or deformation in the reciever or bolt minus the damage it took trying to remove the heavily fireformed case.
Pictures:
Fractured case (head)
fractured case (side view)
Bolt face
Previously fired cases
COL
https://drive.google.com/file/d/1FgCNhPVgncudEJtcJWD53PBwa9hZbIc9/view?usp=sharing
https://drive.google.com/file/d/1Fd3wzkyIL5ljDPzuQfPxkf8hvcdac8tb/view?usp=sharing
https://drive.google.com/file/d/1G9IYZx6MgDkN6sibLb7wgzBKnuIL3MPl/view?usp=sharing
https://drive.google.com/file/d/1FuWXmFzdzHVDlaS9Q4mS_2GOKaSY3G0u/view?usp=sharing
https://drive.google.com/file/d/1G9htneCQsAxcMT3Ojd940X6uDgxPk4ax/view?usp=sharing
upon firing, case expanded into bolt face and damaged ejector and I was unable to remove the case without damaging the bolt face. Also damaged bolt handle banging it open with a hammer.
I realize this is my fault. I was shooting reloaded rounds I personally made. So I have messed up somehow. I would like to know how I messed up.
Facts:
-this was bullet #28 of 100 in the case.
-168gn eld-x
-42.5gn IMR 4895
-LC 16 brass (once fired by me at least)
-CCI #34 primers
-Primers on previous cases were flattened but not cratering.
-this is the same load I have shot hundreds of times.
-max charge for IMR 4895 for 168gn jacketed boat tail in my reloading manual states 42.5gn not compressed. Yes I am at the max for my reloading manual(lyman 49th edition). but not over.
-this firearm had about 1200 rounds through it. 75% +/- of those rounds were reloads.
Observations:
2 rounds were SLIGHTLY harder to chamber.
the round that had catastrophic case failure was not hard to chamber.
target was at 450M and previous group was around 8" which is pretty good for my admittedly amateur shooting.(after malfunction I did not go check the target. did check my pants... all clear)
Questions:
1. How did this happen?
2. Should I scrap the firearm or will a new bolt be a safe repair? No obvious signs of cracks or deformation in the reciever or bolt minus the damage it took trying to remove the heavily fireformed case.
Pictures:
Fractured case (head)
fractured case (side view)
Bolt face
Previously fired cases
COL
https://drive.google.com/file/d/1FgCNhPVgncudEJtcJWD53PBwa9hZbIc9/view?usp=sharing
https://drive.google.com/file/d/1Fd3wzkyIL5ljDPzuQfPxkf8hvcdac8tb/view?usp=sharing
https://drive.google.com/file/d/1G9IYZx6MgDkN6sibLb7wgzBKnuIL3MPl/view?usp=sharing
https://drive.google.com/file/d/1FuWXmFzdzHVDlaS9Q4mS_2GOKaSY3G0u/view?usp=sharing
https://drive.google.com/file/d/1G9htneCQsAxcMT3Ojd940X6uDgxPk4ax/view?usp=sharing