450 Bushmaster – Bolt Action Rifle Only

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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 be excessive in others. All loads should be reduced by 5% as a starting point for development where cartridges have greater than 40 grains in capacity and 10% for cartridges with less than 40 grain capacity following safe handloading practices as represented in established mainstream reloading manuals. Presentation of these loads does not constitute a solicitation for their use, nor a recommendation.

450 Bushmaster – For Bolt Action Rifles Only
Firearm Ruger Scout Rifle
Barrel Length 16.10″
Max Case Length 1.700″ +0.000″/-0.010″
Min – Max COL 2.000″ – 2.260″
Primer CCI 450 – Small Rifle Magnum
Bullet Diameter 0.4525″ +0.000″/-0.0030″
Reloading Dies Hornady
Caution: Loads exceed SAAMI MAP = 38.5 kpsi,
<50 kpsi Not suitable for AR applications.

 

Bullet Type Bullet
Weight

Grains
Net H2O
Grains
Capacity
COL” Powder Type Powder
Charge

Grains
Muzzle
Velocity

fps
Muzzle
Energy

ft/lbs
Hornady FTX 200 48.0 2.225 H110 47.0 2521 2823
Hornady FTX 200 48.0 2.225 Lil’ Gun 45.5 2588 2975
Hornady FTX 200 48.0 2.225 Win 296 46.0 2419 2599
Barnes Spitfire MZ 245 42.1 2.100 H110 42.0 2297 2871
Barnes Spitfire MZ 245 42.1 2.100 Lil’ Gun 40.5 2261 2782
Barnes Spitfire MZ 245 42.1 2.100 Win 296 41.5 2226 2696
Hornady FTX 250 42.6 2.225 H110 40.5 2240 2786
Hornady FTX 250 42.6 2.225 Lil’ Gun 39.0 2366 3108
Hornady FTX 250 42.6 2.225 Win 296 40.2 2218 2732
Barnes Expander TMZ 250 37.1 2.225 H110 38.0 2135 2531
Barnes Expander TMZ 250 37.1 2.225 Lil’ Gun 37.5 2327 3007
Barnes Expander TMZ 250 37.1 2.225 Win 296 38.0 2171 2617
Barnes TSX 275 41.2 2.260 H110 38.5 2058 2587
Barnes TSX 275 41.2 2.260 Lil’ Gun 37.5 2225 3024
Barnes TSX 275 41.2 2.260 Win 296 38.5 2074 2627
Hornady SST 300 39.2 2.260 H110 36.0 2004 2676
Hornady SST 300 39.2 2.260 Lil’ Gun 35.5 2159 3106
Hornady SST 300 39.2 2.260 Win 296 36.0 1998 2660
Hornady XTP/Magnum 300 46.9 2.195 TrailBoss 12.0 875 510
Hornady XTP/Magnum 300 46.9 2.195 TrailBoss 12.5 972 630
Hornady XTP/Magnum 300 46.9 2.195 TrailBoss 13.0 1007 676
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