500 gn. cast in 45-70 Guide Gun

[Papaclaude]

Has anyone tried using 500 gn. cast boolits in a 45-70 Guide Gun? If so, what loads are you using?

 

[sard]

I'm using a RCBS 45-500-FN at .459 that I really like. Loads out of Lyman Cast Handbook third edition. With my alloy, gas checked, and powder coated it comes out at 530 grains.

 

[Gun-adian]

My really heavy Marlin length .45/70 load....

A Lyman 462560 weighing 540 grains powder coated, checked and sized at .460

I cut the brass back so it would crimp in the proper spot on the boolit as opposed to further up the nose but still maintaining the correct overall length. I use a .458SOCOM die to crimp it.

I pulled some old light load data from the 44th edition (1967) of the Lyman manual. They feed and shoot great through all my Marlins....even if they do look like giant lipstick tubes.

 

[458lott]

I shoot a 540gr ballisti-cast gas check. feeds great, and ex. results

 

[bcnorth]

500 Lee myself. PCed and checked.
lots of data out there but work up slow they kick expecially in a guide model

 

[gunner1967]

marlin guide 45/70

I have a marlin guide I use hornady brass its shorter,hope that help have a great day ,loading

 

[remington jim]

I use 525 gr Bear Tooth Pile Drivers over a BIG amount of H322 ! they will go lenght ways thru most animals ! RJ

 

[jethunter]

There's a duplicate thread here: http://www.canadiangunnutz.com/foru...-Data-for-500gr-45-70?p=12375357#post12375357