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Warning: Bullet selections are specific, and loads are not valid with substitutions of different bullets of the same weight. Variations in bullet length will alter net case capacity,  pressure and velocity. Primer selection is specific and primer types are not interchangeable. These are maximum loads in my firearms and may easily be excessive in others. All loads should be reduced by 10%,  and developed following safe handloading practices as represented in established reloading manuals produced by component manufacturers. Presentation of these loads does not constitute a solicitation for their use, nor a recommendation.
 

Cartridge: 9.3x62mm

  Rifle: CZ 550 FS   Max COL: 3.291"
  Barrel: 20.5"   Reloading Dies: RCBS
  Max case length: 2.440"   Group distance: 100 yards
 Note: Check for clearance and contact with rifling before loading to these COL's.
*Suggest roll crimp for 320 grain Win 760 loads for more uniform ignition.
Bullet Type Bullet
Weight
Bullet
Diameter
C.O.L. Net Water
Capacity
Powder
Type
Charge Primer
Type
Muzzle
Velocity
Muzzle
Energy
Group
Size
Barnes TSX FB 250 .366" 3.291" 64.7 BL-C2 61.0 CCI 250 2515 3512 1.3
Barnes TSX FB 250 .366" 3.291" 64.7 Varget 60.5 CCI 250 2479 3412 1.1
Barnes TSX FB 250 .366" 3.291" 64.7 H414 66.0 CCI 250 2472 3393 1.6
Barnes TSX FB 250 .366" 3.291" 64.7 IMR 4895 60.0 CCI 250 2538 3577 1.0
Barnes TSX FB 250 .366" 3.291" 64.7 Win 748 61.0 CCI 250 2535 3568 1.5
Barnes TSX FB 250 .366" 3.291" 64.7 Re 15 61.5 CCI 250 2530 3554 1.2
Speer SP 270 .366" 3.250" 67.6 Varget 61.5 CCI 250 2409 3480 1.0
Speer SP 270 .366" 3.250" 67.6 H414 67.5 CCI 250 2415 3497 1.3
Speer SP 270 .366" 3.250" 67.6 IMR 4878 61.0 CCI 250 2473 3667 1.1
Speer SP 270 .366" 3.250" 67.6 RE 15 62.0 CCI 250 2448 3594 0.8
Hornady SP RP 286 .366" 3.291" 65.6 Varget 59.5 CCI 250 2345 3493 1.4
Hornady SP RP 286 .366" 3.291" 65.6 H414 65.0 CCI 250 2341 3481 1.2
Hornady SP RP 286 .366" 3.291" 65.6 IMR 4895 59.0 CCI 250 2399 3656 0.9
Hornady SP RP 286 .366" 3.291" 65.6 Win 760* 66.0 CCI 250 2400 3659 1.2
Hornady SP RP 286 .366" 3.291" 65.6 Re 15 60.0 CCI 250 2365 3553 0.7
Woodleigh PP SN 320 .366" 3.291" 62.3 Varget 56.0 CCI 250 2205 3456 1.3
Woodleigh PP SN 320 .366" 3.291" 62.3 H414 61.0 CCI 250 2208 3465 1.8
Woodleigh PP SN 320 .366" 3.291" 62.3 IMR 4895 55.0 CCI 250 2234 3547 1.1
Woodleigh PP SN 320 .366" 3.291" 62.3 Win 760* 62.5 CCI 250 2270 3662 1.4
Woodleigh PP SN 320 .366" 3.291" 62.3 Re 15 56.5 CCI 250 2224 3515 0.9