Prepping .308 GGG brass for use.

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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 treated as suspect and not used.

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.
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dromia
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Re: Prepping .308 GGG brass for use.

#11 Post by dromia »

I would recommend a freebore/leade/bore/groove/case mouth slug rather than a chamber cast.
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Re: Prepping .308 GGG brass for use.

#12 Post by Alpha1 »

dromia wrote:I would recommend a freebore/leade/bore/groove/case mouth slug rather than a chamber cast.
Im not sure what you mean by that could you elaborate please.
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Re: Prepping .308 GGG brass for use.

#13 Post by Christel »

Well done Alpha1, thanks for sharing.

goodjob
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Re: Prepping .308 GGG brass for use.

#14 Post by dromia »

Alpha1 wrote:
dromia wrote:I would recommend a freebore/leade/bore/groove/case mouth slug rather than a chamber cast.
Im not sure what you mean by that could you elaborate please.
It is the bit between the case mouth and the start of the rifling that is key not the chamber.

Read Texasmac's article on chamber casts and impact slugs in the library for how to. Impact impressions give far more accurate results than casts with cerrosafe and the like.
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Re: Prepping .308 GGG brass for use.

#15 Post by Alpha1 »

Ah yes my mistake I wrote chamber cast thats not what I meant I dont do the cerosafe thing.
I meant a impact cast I did one before on the AIA the results of that one was quite surprising. It enabled me to purchase a suitable mold from NOE that works well.
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