Joined
·
3 Posts
Does anyone reload .223 (.224) Rem using 75GR HPBTs? The 556 loves heavier bullets and functions flawlessly using either 75GR Hornady or Privi Partizan Match (factory loaded) ammo.
I'm trying to develop some accurate reloads using both Hornady and Partizan 75GR HPBT bullets. Despite numerous online searches (to include this forum), I’ve found little info (recipes) for the Sig 556's fast 1 in 7 twist - 16" barrel. Nearly all printed guides list the Hornady 75GR HPBT with longer barrels. Does anyone have any starter recipes or online links they’d be willing to share? My starter loads will be based on:
Rifle: Sig 556
Barrel: 16”
Twist: 1 in 7
Bullets: Hornady 75GR HPBT Match
Privi Partizan 75GR HPBT Match
Primers: CCI 400
CCI 41
Brass: PMC Military (once fired)
Lake City Military (-10%) (once fired)
Powder: ?
Grains: ?
OAL: ?
Data Source: ?
I'm trying to develop some accurate reloads using both Hornady and Partizan 75GR HPBT bullets. Despite numerous online searches (to include this forum), I’ve found little info (recipes) for the Sig 556's fast 1 in 7 twist - 16" barrel. Nearly all printed guides list the Hornady 75GR HPBT with longer barrels. Does anyone have any starter recipes or online links they’d be willing to share? My starter loads will be based on:
Rifle: Sig 556
Barrel: 16”
Twist: 1 in 7
Bullets: Hornady 75GR HPBT Match
Privi Partizan 75GR HPBT Match
Primers: CCI 400
CCI 41
Brass: PMC Military (once fired)
Lake City Military (-10%) (once fired)
Powder: ?
Grains: ?
OAL: ?
Data Source: ?