the hornady book i have does not have any data for this bullet ,i am using IMR 4831 powder,,, any data would be helpfull
270 Cal 130 gr SST these are the polymer tipped bullets
Bullet Type = .277 130 GR SST HORNADY Bullet Weight = 130.0 grains
Bullet Diameter = 0.277 in Bullet Length = 1.240 in
Bullet BC = 0.46 Sectional Density = 0.242
Case Type = 270 Winchester Case Length = 2.540 in
Full Case Capacity = 67.063 grains water Est. Overall Cartridge Length = 3.350 in
Net Case Capacity = 60.523 grains water Bullet Seating Depth = 0.430 in
Rifle Type = Barrel Length = 22.0 in
Effective Barrel Length = 19.89 in Barrel/Case Volume Ratio = 5.9
Cartridge Temperature = 70.0 °F
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Bullet Type = .277 130 GR SST HORNADY Bullet Weight = 130.0 grains
Bullet Diameter = 0.277 in Bullet Length = 1.240 in
Bullet BC = 0.46 Sectional Density = 0.242
Case Type = 270 Winchester Case Length = 2.540 in
Full Case Capacity = 67.063 grains water Est. Overall Cartridge Length = 3.350 in
Net Case Capacity = 60.523 grains water Bullet Seating Depth = 0.430 in
Rifle Type = Barrel Length = 22.0 in
Effective Barrel Length = 19.89 in Barrel/Case Volume Ratio = 5.9
Cartridge Temperature = 70.0 °F
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