hello
I have a rifle weatherby mark v cal 270wby, made in Japan, so, I used it a lot, and now the barrel already needs to be changed; now the situation is: repeat the cal. 270wby or change of cal. 7mm STW.
My 270wby using powder 7828 and 130grs nosler bt, it gets 3400-3450fps, with very good precision.
So the 7mm STW using 140grs nosler bt and powder 7828, gave me almost the same velocity 3400-3450fps. but with almost 8,0 grs more of powder.
now the cal. 7mm has the advantage to use bullets as heavies as the 175grs and the 270 has the 160grs, but i use the rifles for mountain hunting, for which the weight of the bullets to use rank in cal. 7mm of the 140-154grs and in the 270 of 130-140grs,
now I had stored cases, bullets and powder to use in the two calibers, alone serious question to define for which caliber???.
the rifles that at present have are: 240wby, 257roberts, 257wby, 270/243imp, 300wby and 340wby.
the rifle will be used when not require the 300wby and seek something more of impact that the 257wby, as for example in coues deer hunting,
I expect its comments
Best regards 8)
G. Ayala
I have a rifle weatherby mark v cal 270wby, made in Japan, so, I used it a lot, and now the barrel already needs to be changed; now the situation is: repeat the cal. 270wby or change of cal. 7mm STW.
My 270wby using powder 7828 and 130grs nosler bt, it gets 3400-3450fps, with very good precision.
So the 7mm STW using 140grs nosler bt and powder 7828, gave me almost the same velocity 3400-3450fps. but with almost 8,0 grs more of powder.
now the cal. 7mm has the advantage to use bullets as heavies as the 175grs and the 270 has the 160grs, but i use the rifles for mountain hunting, for which the weight of the bullets to use rank in cal. 7mm of the 140-154grs and in the 270 of 130-140grs,
now I had stored cases, bullets and powder to use in the two calibers, alone serious question to define for which caliber???.
the rifles that at present have are: 240wby, 257roberts, 257wby, 270/243imp, 300wby and 340wby.
the rifle will be used when not require the 300wby and seek something more of impact that the 257wby, as for example in coues deer hunting,
I expect its comments
Best regards 8)
G. Ayala