| 308 |
| (.275 member) |
| 21/08/07 02:40 PM |
505Gibbs barrel twist?
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Does anyone know what the rifling measurements are for a .505Gibbs ? I will soon be building one and will be using original reloading data 535g@2300fps .Thanks
308
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Does anyone know what the rifling measurements are for a .505Gibbs ? I will soon be building one and will be using original reloading data 535g@2300fps .Thanks 308 |