MSD MIke
10-12-2017, 01:34 PM
The gun in question is a Ruger Blackhawk 45/45ACP convertible. Both cylinders were .450 so I bought the reamer and pilots and they are both now at a perfect .451. Until this is done neither cylinder shot lead well and of course the barrel leaded.
So the reason for the question is many people claim their Blackhawk shoots badly with the 45ACP cylinder due to the long bullet jump to the forcing cone. With my gun the most accurate load is 45ACP with virtually any 200 Gr, LSWC with almost any published load data. I have even used the same bullet in 45 Colt brass and taper crimped with a 45 ACP die and while it shoots well it still will not match the 45 ACP cylinder.
So, based on my experience (With one gun) I don't think the bullet jump is a concern.
Don't get me wrong, the 45 Colt cylinder shoots very well, its just that with the ACP cylinder the thing is a real tack driver.
I would be interested in any technical reasons this bullet jump is a bad thing.
Thanks
Mike
So the reason for the question is many people claim their Blackhawk shoots badly with the 45ACP cylinder due to the long bullet jump to the forcing cone. With my gun the most accurate load is 45ACP with virtually any 200 Gr, LSWC with almost any published load data. I have even used the same bullet in 45 Colt brass and taper crimped with a 45 ACP die and while it shoots well it still will not match the 45 ACP cylinder.
So, based on my experience (With one gun) I don't think the bullet jump is a concern.
Don't get me wrong, the 45 Colt cylinder shoots very well, its just that with the ACP cylinder the thing is a real tack driver.
I would be interested in any technical reasons this bullet jump is a bad thing.
Thanks
Mike