I recently purchased Canik TP9 SFX and while it shoots great groups with FMJs it doesnt work so well with cast. I'm using Lee 356-125-2R PCed around 14BHN sized to .356, COL-1.090max. I like to have variety of powders on hand so I tried loads with TiteGroup, HP38, HS6, PowerPistol, AutoComp, Unique, WSF using various loads. I'm still getting the same problem no matter what I do.
My rounds randomly fail to completely chamber which leaves slide out of battery. Any attempt to smack slide forward only seems to jam current round even more. At this point round has to be ejected with some force I might add. At first I didnt notice any obstructions but last night I went to the range and i finally caught few rounds that had long strips of lead on the nose and one round spit out complete lead ring which I'm assuming is the cause of those jams.
Now the question becomes whats the cause ? Is it the gun or is it my ammo?
I never had any leading issues with my reloads but to make sure you have to check everything right. So i looked and measured and checked everything and pulled bullets apart etc and here is where I'm at.
I'm not shaving lead ring when seating my bullets as my brass is properly belled
I'm not swaging my bullets when crimping. I do crimp only enough to remove any bell on separate FCD
Changing powder or load doesnt make any difference.
Even when it works, its not that accurate.
But here is the bottom line. Every time I shot I also had my full size Sig P320 with me and all ammo worked fine in my sig and was accurate too with no leading or anything. Thats why I dont think its my ammo.
I think its the gun. Specifically lack of freebore in that barrel. I have to seat my projectiles short at 1.09max or they cut into rifling. I ran into other peoples posts with similar issue and lack of or undersized feeebore looks like it can shave rings off a bullet. I never knew this before but it does make sense to me now. Most guns are designed to shoot FMJs so this is not an issue there.
So I'm done messing with different powders until I get this issue resolved. I think I'm going to look for someone (I think Doug or someone here does it well) to ream the throat on this barrel and cut more of a freebore in that chamber. I wish I could get Sig to cut one of their barrels to fit that Canik. Love my p320 and I'm yet to find ammo that wont run in it. Was hoping for similar experiance from Canik but this might need some work before it works well with cast.
What do you think?