Chamber length buttons

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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.
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The Gun Pimp
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Re: Chamber length buttons

#11 Post by The Gun Pimp »

Remember - never feed from a mag unless you have to - slamming the delicate bullet meplat against the feed-ramp does nothing for accuracy.
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Alpha1
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Re: Chamber length buttons

#12 Post by Alpha1 »

:good:
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billgatese30
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Re: Chamber length buttons

#13 Post by billgatese30 »

Has it been chambered with a tight neck perhaps? I.e. intended to be used with turned neck cases rather than factory cases so if cases have a particularly thick neck section it may appear tight?
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Alpha1
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Re: Chamber length buttons

#14 Post by Alpha1 »

Yes its got a tight chamber. When I first got it I bought some Hornady match ammo because I wanted the cases. I tried chambering a round for test purposes the bolt was tight to close and I struggled to re open the bolt the bolt and round would not extract I had to use a rubber mallet to free the bolt and round from the chamber. I bought several different makes of ammunition and most had the same problem. It was only when I started measuring cartridge over all length and stuff that I realized how tight the thing is.
I then contacted the previous owner through the dealer I bought it off and he supplied me with dummy rounds and reloading data he had worked up for the rifle. Using this info and my own measurements I was able to build a round for it. Like I say it shoots really small groups and its a keeper but its not a rifle for a beginner who just wants to shoot bought ammo. It would be a headache to some one who did not reload. I believe the guy got it built for stalking all though its a heavy rifle to be lugging around the Country side.
I was told by the dealer that he traded this in for a very expensive factory rifle in 6.5x55 so he obviously liked the calibre.
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Alpha1
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Re: Chamber length buttons

#15 Post by Alpha1 »

Not a very good picture the rifle in front is the one I am referring to. It looks a lot better in the flesh.
DSCF0163.jpg
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Re: Chamber length buttons

#16 Post by The Gun Pimp »

billgatese30 wrote:Has it been chambered with a tight neck perhaps? I.e. intended to be used with turned neck cases rather than factory cases so if cases have a particularly thick neck section it may appear tight?
Then the tight-neck would have been highlighted at Proof and engraved on the barrel.
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Alpha1
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Re: Chamber length buttons

#17 Post by Alpha1 »

Ah that's interesting there are some stampings on the barrel that I did not understand I'll check thats maybe what they refer to.
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ovenpaa
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Re: Chamber length buttons

#18 Post by ovenpaa »

Look for a number and the letters NK
/d

Du lytter aldrig til de ord jeg siger. Du ser mig kun for det tøj jeg har paa ...

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Alpha1
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Re: Chamber length buttons

#19 Post by Alpha1 »

I have examined the barrel its stamped with NP there is some sort of symbol above the NP but I can not make out what it is. This is followed with 6.5x55 SWD SDP then LP over MM LP/MM

Don't know if that means anything. It means nothing to me except for the 6.5x55.
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Re: Chamber length buttons

#20 Post by The Gun Pimp »

Doesn't sound like a tight-neck - as Ovenpaa says it would be engraved '284nk' .

Normally, the proof house would chuck in the 'go' and 'no-go' gauges, meaning that the chamber length is correct.
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