[TMan]

Has anyone tried this combination to know if the magazine is long enough, and the round will cycle?

 

[Davers]

I've never tried the 300 grainers in my Ruger M-77/44, but couldn't see why it wouldn't work. I like the 240 grainers the best, along with H-110 powder.

 

[ironhead7544]

Too long if crimped in the groove. The Speer 300 gr will work.

 

[TMan]

Too long if crimped in the groove. The Speer 300 gr will work.

I was afraid of that :-(

Oh well, a couple boxes of 265gr Hornady's will just have to do. Could be a lot worse. Maybe a canneluring tool would work?

I have a pile of 300's, that work really well in my T/C sidehammer, with T/C sabot's. Not a complete loss by any means.

Thanks