I am currently having a project finished. It is in 40-50 SBN. Does anyone shoot this round and if so what are some starting loads?

JHolland

This is what I've collected over the years, not sure if all the links are active though.  Some links are to other forums (looked in the forum rools & it appears to be alright):
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And one for the .40-50 straight
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This should get you started.  Regards, Mike

The May-June 1993 Handloader Magazine contains a Ken Waters Pet Loads article on the 40-50SBN.  Loads for a variety of smokeless and black powders and cast bullets ranging from 225 to 290 grains are identified.  I recently got an original copy from Wolfe Publishing.

I paper patch the 40-50SBN with a .3925" bullet from an adjustable length KAL mould.  Cases are Norma 45-120 sized in a Redding FL die to 40-50 and then the extraordinarily long neck is trimmed to proper length.  I first used Starline 45-70 brass but didn't find a paper/bullet combination that allowed reloading without neck sizing.  The thicker Norma brass trimmed way back allows me to reload with 16# 100% rag paper without neck sizing.  Some neck diameters are a little tighter than others so I use patches treated with Rooster lube for the larger and untreated patches for the smaller.  As I'm shooting the cases the tighter ones are becoming better fireformed and the treated patches are the better fit.  

For black powder, Old Eynsford powder is working well in the cartridge.  Clean burning and volume for volume gives the same trajectory as Swiss 1.5.  My charge wouldn't do you much good because there are too many variables such as wad and lube cookie thicknesses and case volume.  You just need to stack the wad/lube/black powder to allow space left over to seat the bullet to your desired depth.  I leave .200".

roger