Uberti 1873 Cattleman and a 265 grain Boolit...Too Heavy?

[Southern Shooter]

I have an Uberti 1873 Cattleman. I also have a Lee 452-255-RF mold that I really like and it drops boolits at 265 grains. I have access to IMR Trail Boss, Triple 7 FFg, and Triple 7 FFFg.

I don't want to beat this gun up. Is this boolit too heavy to use with any of these powders from this revolver? Or, are all of these powders with this boolit and gun totally safe combinations?

Thanks

[Jeff Houck]

10 grains of added weight won't cause any pressure problems. What you need to look at is the seating depth of the bullet. If it seats deeper in the case then this reduces the internal volume and your pressures will sky rocket at an exponential rate.

Jeff

[curator]

The Lee 452-255RF is a great bullet with black powder or substitutes. It won't cause any problems with the powders you mention. However, it does not hold a lot of lube and may need some cleaning/cylinder pin lube between cylinder reloadings.