Seating depth

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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.
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Forum rules
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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meles meles
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Seating depth

#1 Post by meles meles »

Is there a limit to how deeply one can seat a bullet in a case (other than reaching the primer of course) ? We're wondering what's the biggest bullet / boolit we could pop in a 7.62x39 case to make a sub sonic round - either in 7.62 or even necking out to .338.
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Re: Seating depth

#2 Post by DW58 »

An interesting concept - something which Jamie and I are looking at with .308Win.

If anyone has experience/info on this it would be handy.
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Re: Seating depth

#3 Post by meles meles »

DW58 wrote: If anyone has experience/info on this it would be handy.

Very speciesist choice of words there, ooman.
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Re: Seating depth

#4 Post by dromia »

It is a function of boolit/bullet weight/length shape, start pressure required for said projectile, dimensions of throat and lead of rifle it is to be used in available case capacity at any seated depth and the type of powder to be used.

So a lot of variables to be considered to answer such a broad question.

What is the application for said round?
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Re: Seating depth

#5 Post by meles meles »

We want to improve upon ye olde De Lisle carbine. Ideally we want a rifle that is as silent as possible, accurate enough to group to 3 MoA at 200 mards and capable of giving an awesome kick when it arrives there.
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Re: Seating depth

#6 Post by dromia »

What is the throat/lead like on the rifle in question.

When you say kick to you mean theoretical stopping power in ft/lbs or actual stopping power on living targets?
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Re: Seating depth

#7 Post by meles meles »

Oh purely theoretical, ooman: we wouldn't really shoot Farmer Giles.

The rifle doesn't exist yet, so the the throat could be whatever is most suitable, ditto rifling twist.
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Re: Seating depth

#8 Post by dromia »

Single shot or magazine fed?
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Re: Seating depth

#9 Post by meles meles »

Magazine, ideally...
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Re: Seating depth

#10 Post by Alpha1 »

bangbang
Last edited by Alpha1 on Sat May 03, 2014 7:33 pm, edited 1 time in total.
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