Is there a rule of thumb deciding on the optimal bullet size once you've slugged your barrel, ie what degree of oversize do you go for from the engagement of the rifling or is it a calculation between the difference of the measurement of the lands and grooves?
Tia
Slugging a barrel and optimal bullet size
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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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Re: Slugging a barrel and optimal bullet size
Ideally you should size your bullets to fit the freebore, so long as such a round will chamber.
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