http://garage.grumpysperformance.com...-hunting.2722/
btw don.t bother using buckshot in a rifled barrel shotgun,
the rifling effectively throws the shot mass in a (DONUT)
and makes an all but useless patterns past about 25 yards in most cases
where the rifled barrels excel is in throwing a slug, designed to be encased in a shot cup or sabot accurately
at extended ranges, some bolt actions like the savage throw a useable 4"-too-6" 3 shot group out to in some cases 175 yard from my test results, remember the DROP and hold over needs to be compensated for at extended ranges, and a 3" high at 100 yards sight in seems to be a good compromise in my testing, impact never goes more than 3.5" above or below the point of aim out to 175 yards and its only 7" low at 200 yards sighted that way with my savage 212, make a ballistic chart, use 1520 vel, and a .162 ballistic drag
https://www.ballisticproducts.com/Do...ctinfo/XMSLUG/
https://www.hornady.com/team-hornady...alculators/#!/
powders like BLUE DOT seem to work reasonably well, but do tests
use your reloading manual, try to use loads listed in several sources,
don't vary the listed components recommended ,primers, powder shot cups wads, crimps, buffers etc,
as both pressure and accuracy will vary, and mix & match combos, might be dangerous
if you do, use listed cases, wads, shot cups
generally high brass base cases have a minimal strength advantage