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Ammo and Reloading Factory Ammunition, Reloading, Components, Load Data and more.

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  #1  
Old 09-10-2018, 7:32 PM
bhilliker@comcast.net bhilliker@comcast.net is offline
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Default reloading .308

Question---I have three factory 308 rounds PPU, Fiocchi and WIN. Overall length on factory loads are 2.700 to 2.710. My Lee book calls for minimum OAL of 2.800 and the Lyman calls for 2.775. (168 grain bullet). Can someone explain the differences to me? Thank you
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Old 09-10-2018, 8:01 PM
maxx03 maxx03 is offline
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Variances in oal are due to bullet types, measuring the bullet at the bullet ogive will give you a more consistent oal measurement.
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Old 09-10-2018, 8:07 PM
racinjason233 racinjason233 is offline
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Load the type of bullet in your book to OAL stated in said book after double checking with another book.
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Old 09-10-2018, 8:26 PM
J-cat J-cat is offline
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R u measuring factory fmj? Or BTHP? The former should be 2.700” and the latter 2.800”
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Old 09-10-2018, 8:39 PM
bhilliker@comcast.net bhilliker@comcast.net is offline
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Default reloading 308

Thanks J-Cat. That makes sense
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  #6  
Old 09-12-2018, 9:15 AM
divingin divingin is offline
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Short answer is that your reloading manual is stating specs for reloading ammunition (generally using specific sets of components.)

Ammo manufacturers do not necessarily go by reloading data, but rather verify pressure by testing their loaded ammo. They may load to specs that, according to the reloading manual, are "wrong", but test out as being within their spec range.
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