Palma (peep sights, sling) shooting is fixed to a 308Win and 155gr projectile and a hard push to 1000yds, but FTR class (palma class gun but with a scope and bipod) isnt fixed in weight....for the twist of 13 to 1 or 12.6 to 1 a 165~168 gr projectile can be better, so maybe its coming from that. A lot of too old palma shooters switch to FTR when their arms/neck/eyes give out so the 13 to 1 twist is in their gun..they just add a scope and bipod.
Just like me....LOL.
Also if you look at the Russian 54R they have a 147gr in a .311 bore, but their hvy projectile is 183~185gr....Enfield 303 Brit also 311 bore 174~175gr. So yes it seems the 165gr average weight does well in a 300....I guess its "proven" to be "about right".
;]
Ideal combination of a bit better BC and higher terminal energy?
;?
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