I have no doubt that the heat generated will work on the existing neck edge when you shoot high intensity cartridges that are short, a lot of heat there and heat is metals worst enemy, but it would take a lot of shooting to start that edge to corrode I would think...I just wouldn't make a habit of it in my gun...to each his own.

Kinda like shooting .38 Specials in a .357 mag. You might want to brush out the chamber thoroughly so that crud at the front won't cause the Lott cases to experience hard chambering or sticky extraction.

Some folks say that extensive use of the shorter cases can cause actual erosion or pitting at the front of the chamber but the best evidence i've seen so far puts the blame on careless or nonexistant cleaning.

Until I can scarf-up some Lott ammo (ammo and components not readily available), any harm in breaking in the gun (and my shoulder!) using some "cheaper" .458 Winchester ammo? Thanks!

I use it my Ruger all the time. Works great and "feel" alot nicer.

Lee

That will work fine.
Have fun


Cheers,

Andr�

I wouldn't do it and don't do it on mine. Every time you light a 458 WM off in the chamber of the Lott, you fire-etch the Lott. Before you know it, the erosion is such that the Lott brass will flow into the eroded portion of the chamber. I warned a fellow shooter some time ago of what might happen with too many 458 WM rounds and he ended up with a Lott chamber with a big fire-etched ring in it. The only way out is to re-barrel it. It isn't worth the trouble for the convenience of shooting the Win Mags.