Need load with N540 for 220 Swift

[Firearmsunlimited]

Does anyone happen to have load data using N540 with 50-55gr bullets in a 220 Swift? Burn rate looks promissing for use in a Swift.

Thanks

 

[Ray123]

My manual doesn't recommend N540 for light bullets in 220 Swift. Only N140 & N160 for 50 and 55 gr bullets in the Swift. But in 22-250 they have data for 69 gr bullets for N540 28.4 start to 34.6 max in 22-250 with 69 grain.

 

[NZ_Fclass]

I dont think that I would be using double base powders in a Swift. 4064/N140 all good. I suspect the pressure will spike before you get decent velocity.