I had a T/C Encore with a 20" Katahdin bbl in 45-70. I used full length brass and the 325 gummy tips with full power loads. I was regularly knocking over 3-4 bowling pins out of the 5 set up at 300yds. I never had any problems. I'd suggest that you just move forward carefully.I'm reloading 45/70 325 grain ftx using a standard federal case untrimmed
my oal is 2.60 when it calls for 2.55.
I'm shooting a tc prohunter single shot and to reloading I have a lee classic loader. Should I be safe with my .05 longer length.
Can I ask when you reloaded the ftx325 grain bullets infill length brass what was your coal.I had a T/C Encore with a 20" Katahdin bbl in 45-70. I used full length brass and the 325 gummy tips with full power loads. I was regularly knocking over 3-4 bowling pins out of the 5 set up at 300yds. I never had any problems. I'd suggest that you just move forward carefully.
FWIW - I sold the 45-70 Katahdin bbl and bought a 500 S&W Katahdin bbl. The 500 is an interesting powerhouse but it is as inaccurate as all get out. 5 different bullets and 4 different powders yielded a single load that produced acceptable accuracy. I think the platform is just not robust enough for the 500 S&W.
Unfortunately, I did not record that measurement and it was some time ago. I shoot a Marlin in 45-70 ever since I sold the Encore bbl. Lately, I've been shooting the 250gr Monoflex just for fun but they won't feed in the Marlin with FL brass. I cut down 25 pieces of brass to test with. They feed fine and the velocities were surprisingly unchanged. They shot slightly smaller groups then the same load in FL brass.Can I ask when you reloaded the ftx325 grain bullets infill length brass what was your coal.