40-90BN and paper patch

[Don McDowell]

I think that a standard chamber reamer with the 7 degree lead built in might be a good thing. It sure works well in the 44-77 anyway.
This 40-90 will foul very quickly and cause a bunch more trouble than the straight cases. Not sure of the twist in this rifle I'm assuming 16 and it shoots to 1000 well, with the 415 gr money bullet. But with the 94 grains of 1f, getting squeezed thru that iddy biddy 40 caliber hole, hard bullets are the order of the day. 16-1 maybe a bit on the soft side. If this rifle had a heavy barrel on it I would probably shoot it more, but as it it barely tips the scale at 10 lbs, and shooting a match with it makes for a long day. I believe your heavy round barrel will be a bunch more comfortable to shoot.