I have download Vithavouri manual (on this site www.vihtavuori.fi/Metric.pdf) and i want reload 7,5x55 Swiss but in
table i read (7,5x55 GP31) what is it? I know GP11 round that are standard army bullets but
what is GP31?? MIN load is 45,5 grs for 167 Scenar with N140 but my friend use 40
grs!!! (IS DANGEROUS??)
What i must do?? (My rifle is Schmidt-Rubin K31)
Infinite thanx

Ther original loading was a 0.299", 213-grain, lead bullet.

This was followed by a steel-capped lead bullet.

This was followed by a 190-grain jacketed round-nose bullet.

This was followed by a 174-grain, spitzer, boat-tail bullet of "0.308" diameter.

Schmidt-Rubins are available in two models, the Model 89 and the Model 1911. The 89 is much weaker than the 1911.

As for loading, I would suggest:
H-4831 From 45.0 grains to 55.2 grains
Winchester WLR Primer

Excuse me if I'll write in Italian.
Trautman,
La mia dose normale � la seguente:
palla da 168 grani, le migliori sono le LAPUA Scenar,
Polvere Vihtavuori oy N160, 46 grani. La dose � media e si pu� andare decisamente oltre (4grs+/-),
innesco RWS 5341 LR oppure Federal Gold Match,
Bossoli Swissmun ossia arsenale di Thun, cio� bossoli militari ad innesco Boxer.
Lunghezza totale 74.5mm
I bossoli Norma di solito spaccano alla quarta ricarica se si fa il full lenght, cerca il Neck size della RCBS per il 7.5*55.
Scrivimi pure sono a tua disposizione.
bye