Some maths...
Round is at once the most stable shape (hence the musket), and it has the worst ballistic coefficient possible. It literally ploughs the air and creates a massive, turbulent vacuum behind it slowing it down. That said, the transition between supersonic and sub sonic (transonic) doesn't affect it like it does a conical, bullet-shaped, bullet.
“Don't forget, that despite 177gr weight of a .490 RPB it has HALF the BC of a 35gr .22lr. With a muzzle velocity of 1450 it will go sub sonic @ 60 yards.”’
That shook me a bit so the .490 is 177gr that’s the same weight at a .36 Sierra pistol bullet. 175gr in my little.36 ml double, never thought of it like that But the .490 could open up flat on impact , great stopping power , but then Sierra would pass through you like acupuncture
Pity no camp fire to chat around, so much enjoyment in your forum, love from London
Apology I seemed to have jumped into your conversation ?????!!!!!
A 47gr .32 RPB moving 1450fps at the muzzle goes sub sonic at 40yds! That's also a "full charge" that most of us don't use except when hunting and needing down range energy (as the turkey anecdote points out).
They drop like stones, so if you want to actually shoot "long range" (over 100yds IMHO) a .50 RPB is a sub caliber. The larger muskets (despite being smooth bores) are the ones that will do it.
It seems to me that before Monsieur Minié's invention they were getting bigger and bigger for military use.... If it's gona be a ball all you can really do is go bigger.
That said, LOVE shooting my .32 SMR at 25yd steel. Heaven!