BC to bullet weight ratio

[357Mag]

When you consider the larger diameter has more drag, you must also consider the larger diameter is easier to accelerate because of increased area on the bullet base. Don't know where the break even line is on that. All -

All -

FWIW -
Ballistician Homer Powley has said that the higher a bullet's SD number, the harder it is to accelerate the bullet. In addition.... increased bullet base surface area would tend to lower pressure; when comparing the same case necked to differing calibres ( example .22-250 vs .250-3000 ).

A comment from Powley, seen in his " The Powley Papers "; as printed found in " Guns & Ammo
1974 Annual "......
" With a particular cartridge, lighter bullets ( if at least 2.5 calibres long ) always have less drop and less remaining energy than heavier bullets which exhibit more drop and more remaining energy; with the same shape. Also, lighter bullets are deflected more by wind. "


With regards,
357Mag