Estimate chamber pressure and muzzle velocity for the 6.5-284 Norma with the free,
in-browser MyLoads internal ballistics simulator. The figures below are illustrative
estimates from a physics model — not a recommended load. Always cross-check a current
published loading manual.
6.5-284 Norma reference
Maximum average pressure (MAP)
58,000 psi
Nominal case capacity
66.0 gr H₂O
Groove / bullet diameter
0.264 in (6.71 mm)
Example simulation illustrative
Bullet
Sierra 6.5mm 264 Caliber (.264) 123 gr HPBT-CN MatchKing
Powder
Hodgdon Hybrid 100V
Charge
44.1 gr
Barrel
24 in
Muzzle velocity
2,771 fps
Peak chamber pressure (interval, ±10% burn rate)
37,758 – 45,930 – 54,878 psi
nominal is 79% MAP (58,000 psi)
Illustrative example — every figure is an estimate; always confirm your load against a current published manual before loading.
Popular 6.5-284 Norma powders
Powders and bullets handloaders commonly use for the 6.5-284 Norma, drawn from public discussion and listed most common first. They appear as the Popular group in the calculator's pickers. This is not a load recommendation — always check your load against a current published manual.
Hodgdon H4831SC
Hodgdon H4350
Alliant RL-23
Hodgdon H1000
Alliant RL-22
Hodgdon Retumbo
Vihtavuori N165
Vihtavuori N160
Alliant RL-19
Hodgdon Varget
IMR 4831
Alliant RL-26
Popular 6.5-284 Norma bullets
Berger 6.5 MM 140 gr Hybrid Target
Sierra 6.5mm 264 Caliber (.264) 142 gr HPBT-CN MatchKing
Berger 6.5 MM 140 gr VLD Hunting
Hornady 0.264 140 gr ELD Match
Sierra 6.5mm 264 Caliber (.264) 140 gr HPBT MatchKing
Sierra 6.5mm 264 Caliber (.264) 130 gr HPBT-CN MatchKing
Berger 6.5 MM 120 gr BT Target
Hornady 0.264 160 gr InterLock RN
Hornady 0.264 143 gr ELD-X
Nosler AccuBond 6.5mm 140 gr Spitzer
Berger 6.5 MM 130 gr VLD Hunting
Nosler Partition 6.5mm 140 gr Spitzer
Barnes .264 127 gr LRX BT
Use MyLoads as a 6.5-284 Norma velocity and pressure calculator: it estimates
muzzle velocity, muzzle energy and the full chamber-pressure curve for your own powder,
charge and barrel length, compared against the reference facts above.