27 October 2012, 04:25
Colt Commander.458 WM H335 Update
This is an update to this post.
http://forums.accuratereloadin...2511043/m/5701039081Chronograph 12 ft from muzzle, Temp. 69 Degs., All 5 shot strings.
Bullet- Horn. 500 gr. DGS
Powder- H335
Primer- Fed. 215GM
Case Used- Remington
Charge- 76.3 Grs.
FPS- 2147,2160,2154,2154,2150. ES- 13, SD- 4, Avg.- 2153
Case Used- Win.
Charge- 76.2 Grs.
FPS- 2171,2164,2157,2182,2182. ES- 25, SD- 11, Avg.- 2171
Charge- 76.0 Grs.
FPS- 2150,2147,2140,2133,2150. ES- 17, SD- 7, Avg.- 2144 (Load I chose for this rifle)
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Bullet- Hornady 500 Gr. SP (old style)
Case- Win,
Charge- 76.2 Grs.
FPS- 2129,2109,2123,2136,2099. ES- 37, SD- 15, Avg.- 2119
Charge- 76.0 Grs.
FPS- 2106,2109,2113,2123,2103. ES- 20, SD- 7, Avg.- 2110
DGS Solid at 76.3 & 76.2 Grs. showed some compression. 76.0 Grs., light compression.
Hornady SP's was shorter from crimp to base and showed no noticable compression.
Note*, difference with case change from Remington to Winchester.
And velocity change with only 2 tenth's increase in charge with DGS solid compared to AA2230.
All loads showed normal extraction and no signs of primer pressure problems.