Hello to all,
Im new to rifle reloading and have a issue with some Lapua 6.5x55 hope some body can point me in the right direction.
Ive attached a picture of a Lapua 6.5x55 case, fired once and loaded with 42.5 grains Hodgdon H4350 powder and a Lapua 139 gr Scenar. Next to it is an unfired new case from the same batch cut open.
It looks as if its loaded to hot and blowing the primer pocket out but its well below the Max on Hodgdons web site. Primers are CCI- BR2
Rifle is Mauser MO3 extreme, there no head swipes or smears on the back of the cases?
Any suggestions would be greatly appreciated.
Primers still have rounded edges and are not protruding from the case after firing.
Kind regards
Walter
6.5x55 case problem
Moderator: dromia
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All handloading data posted on Full-Bore UK from 23/2/2021 must reference the published pressure tested data it was sourced from, posts without such verification will be removed.
Any existing data without such a reference should be treated as suspect and not used.
Use reloading information posted here at your own risk. This forum (http://www.full-bore.co.uk) is not responsible for any property damage or personal injury as a consequence of using reloading data posted here, the information is individual members findings and observations only. Always verify the load data and be absolutely sure your firearm can handle the load, especially older ones. If in doubt start low and work your way up.
All handloading data posted on Full-Bore UK from 23/2/2021 must reference the published pressure tested data it was sourced from, posts without such verification will be removed.
Any existing data without such a reference should be treated as suspect and not used.
Use reloading information posted here at your own risk. This forum (http://www.full-bore.co.uk) is not responsible for any property damage or personal injury as a consequence of using reloading data posted here, the information is individual members findings and observations only. Always verify the load data and be absolutely sure your firearm can handle the load, especially older ones. If in doubt start low and work your way up.
Re: 6.5x55 case problem
Welcome to the forum. Could this be as simple as the de-capping pin stem being set too long causing the case to deform like this when the primers are popped out?
EDIT - By this I mean the rounded end at the bottom of the de-capping stem that holds the pin itself is being pushed into the case above the flash hole causing the whole primer pocket base to deform.
EDIT - By this I mean the rounded end at the bottom of the de-capping stem that holds the pin itself is being pushed into the case above the flash hole causing the whole primer pocket base to deform.
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dromia
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Re: 6.5x55 case problem
Welcome to the forum.
Why not introduce yourself on the New Members forum?
Going back to your post, what prompted you to section the case after first firing?
Why not introduce yourself on the New Members forum?
Going back to your post, what prompted you to section the case after first firing?
Come on Bambi get some
Imperial Good Metric Bad
Analogue Good Digital Bad
Fecking stones
Real farmers don't need subsidies
Cow's farts matter!
For fine firearms and requisites visit
http://www.pukkabundhooks.com/
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Wallis
Re: 6.5x55 case problem
Hello Ovenpaa,ovenpaa wrote:Welcome to the forum. Could this be as simple as the de-capping pin stem being set too long causing the case to deform like this when the primers are popped out?
EDIT - By this I mean the rounded end at the bottom of the de-capping stem that holds the pin itself is being pushed into the case above the flash hole causing the whole primer pocket base to deform.
Thank you very much I think you have it. Looking at the shape of my de-capping pin it is an exact match.
Much appreciated
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Wallis
Re: 6.5x55 case problem
Hello Dromia,dromia wrote:Welcome to the forum.
Why not introduce yourself on the New Members forum?
Going back to your post, what prompted you to section the case after first firing?
Thanks I will do, I think the issue is sorted looks as if the De-capping pin base pushing out the cup.
Thanks again to ovenpaa.
Many thanks
Walter
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dromia
- Site Admin
- Posts: 20227
- Joined: Sat Nov 06, 2010 4:57 am
- Home club or Range: The Highlands of Scotland. Cycling Proficiency 1964. Felton & District rifle club. Teesdale Pistol and Rifle club.
- Location: Sutherland and Co Durham
- Contact:
Re: 6.5x55 case problem
I agree that is what it looks like and probably is but I am still interested in what it was that prompted you to section the case.
Come on Bambi get some
Imperial Good Metric Bad
Analogue Good Digital Bad
Fecking stones
Real farmers don't need subsidies
Cow's farts matter!
For fine firearms and requisites visit
http://www.pukkabundhooks.com/
-
zanes
Re: 6.5x55 case problem
Guessing the OP was having a job properly seating the new primers?dromia wrote:I agree that is what it looks like and probably is but I am still interested in what it was that prompted you to section the case.
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Wallis
Re: 6.5x55 case problem
Hello Dromia,dromia wrote:I agree that is what it looks like and probably is but I am still interested in what it was that prompted you to section the case.
The reason is after de-priming I noticed a bulge in the primer pocket so decided to have a good look to see what was going on. Quite hard to see in the picture, but it does not look square.
Regards
Walter
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BRYAN3
Re: 6.5x55 case problem
It's not suposed to look square though,is it.Wallis wrote:Hello Dromia,dromia wrote:I agree that is what it looks like and probably is but I am still interested in what it was that prompted you to section the case.
The reason is after de-priming I noticed a bulge in the primer pocket so decided to have a good look to see what was going on. Quite hard to see in the picture, but it does not look square.
Regards
Walter
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Wallis
Re: 6.5x55 case problem
I know words can be confusing, Let me do a picture.BRYAN3 wrote:It's not suposed to look square though,is it.Wallis wrote:Hello Dromia,dromia wrote:I agree that is what it looks like and probably is but I am still interested in what it was that prompted you to section the case.
The reason is after de-priming I noticed a bulge in the primer pocket so decided to have a good look to see what was going on. Quite hard to see in the picture, but it does not look square.
Regards
Walter
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