ooop's rookie mistake

Reloading equipment, methods, load data, powder and projectile information.

ooop's rookie mistake

Post by marksman » 17 Feb 2019, 5:49 pm

I have been making some new 22 dasher cases and didn't think I needed to check the load for pressure as with my last lot I went half a grain over what blew this primer, we all know what an assumption is though, I should have known better

Image

no damage done but I nearly needed a hammer to open the bolt
the only change was a new batch of cases
so the moral of the story is to check for pressure when you make a change in your reloads :thumbsup:
obviously these lapua cases are heavier
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Re: ooop's rookie mistake

Post by Bill » 17 Feb 2019, 5:53 pm

damn didnt take much, Ive done a bunch of loading recently with the grendel and normally Id throw caution to the wind and jam a few grains over lol, but not with a small case and small bolt lugs.....safety first always
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Re: ooop's rookie mistake

Post by Stix » 17 Feb 2019, 10:37 pm

Good reminder marksman.

Did you/do you normslly weigh new cases to compare to old/existing ones...?

Id be interested to know all the details... :)
Such aa the difference in weight & capacity of the cases in each batch (just the median.. :) , & the difference in the load you come up with for the new batch, as opposed to the load for the current/previous batch....
:drinks:
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Re: ooop's rookie mistake

Post by SCJ429 » 18 Feb 2019, 9:10 pm

I bet that primer pocket is a bit loose now. Do you know how fast it went?
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Re: ooop's rookie mistake

Post by wrenchman » 18 Feb 2019, 11:40 pm

was it a hot load
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Re: ooop's rookie mistake

Post by marksman » 20 Feb 2019, 10:36 am

Stix I did not bother weighing the case's as I thought it would be good enough being a lapua case and that I have shot this load and higher with other cases before, I would be weighing the inside volume after this firing so I thought it would be ok as this load was mild in the cases I had already formed
this shows you need to check things again when there is a change

the primer falls out of this case now, you can see the gap, I didn't put it over the chrony but it was very accurate hitting the bull at 200 SCJ429

a very hot load apparently wrenchman :thumbsup:
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Re: ooop's rookie mistake

Post by Stix » 20 Feb 2019, 5:46 pm

Ok...im with you marksman... :thumbsup:

Id still be interested to know the difference in case volume & the load between the 2 batches, if you can be bothered posting it...or even pm if its an issue.

Just for some perspective as to how close/ how far this mishap was to not happening.... :unknown:

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