jhalcott
01-07-2008, 02:03 PM
I was shooting some 45-70 loads at the range yesterday. All cast loads,half with black and half with smokelesss. I had fired 5 smokeless at 50 yards , then started on the blackpowder loads. My 2nd blackpowder shot keyholed.This kind of buggeg me.The rest of the rounds hit the targets (out to 200 yards) nose on.
The bullets were 405 fn's that I purchased in November,already loaded. They are marked as having 55 grains of ff in them. The key holer FELT and sounded the same as the others. Years ago I had some 30-30 loads that would keyhole when shot from a 10" Contender. The were 185 cast fn gc bullets. I don't believe the twist and/ velocity was right for that bullet. that does not explain the key hole yesterday though!
The bullets were 405 fn's that I purchased in November,already loaded. They are marked as having 55 grains of ff in them. The key holer FELT and sounded the same as the others. Years ago I had some 30-30 loads that would keyhole when shot from a 10" Contender. The were 185 cast fn gc bullets. I don't believe the twist and/ velocity was right for that bullet. that does not explain the key hole yesterday though!