Reloading .375 Cheytac

[Che7tac]

Hello guys,
I would like to know if some of you are in .375 reloading !

I've got an stiller tac-408 custom with 32" lothar walther bull profile barrel with a 8" regular twist.

I would like to develop a ELR ammunition with CE 425gr Lazer tipped.

I've got Peterson brass, m215 federal primers.

I've got both Retumbo and H50BMG powders. Cdt I would like to start my 1gr stepping with 125gr of Retumbo and 130gr of H50BMG. Is it ok ?

Can you share with me your experience and advises ? what do you think of my setup ?

Thanks for reading.

Thibault from France