I have been doing quite a bit of searching and have found that the M66 shouldn't be shot with a steady diet of .357 due to structual insufficiency. I have gathered that 110 and 125gr. rounds should be avoided. It will see alot of .38 ammo also but, I want to shoot a regular diet of .357 out of it also. I get the feeling that I might as well keep the GP100 for steady .357 magnum range use and use the M66 for a mix of .38 and .357 loads. Who here has shot their M66's enough to exploit this problem or is it a matter of "well, I heard somebody say" kinda thing. I'm fixing to get into reloading my own range ammo and want to standardize bullet weights for my .38 and .357 for use in my 642, M66 and quite possibly GP100.
Thanks, Robert.
Thanks, Robert.