303Guy
03-08-2013, 04:06 PM
Had this rifle for a while and it shoots j-words real well and is to me a great calibre. I've even shot a few patched boolits through it - 125gr which seemed like a good weight far lead. But now I'm thinking of trying cast in it - patching those small boolits is a bit of a pain (not as bad a 22 cal). I'm not a gas check person and I don't buy molds - I make my own molds. Most folks have seen a 25-303 let alone shoot one but it would lie between the 250 Savage and 257 Roberts and has a neck about 1½ diameters. Any suggestions would be appreciated.
My powder available are W780, W748, H4350 and lower down the scale, H4227, Lil'Gun, shotgun powder (not even going to consider that!) Actually, I'm only interested in the rifle powders, particularly ones that come close to filling the case. The rifle is a 1-in-10 twist.
I am hoping for pretty decent velocity with perhaps 120gr boolits but as light as 100gr will do if that's what gets the velocity up.
My powder available are W780, W748, H4350 and lower down the scale, H4227, Lil'Gun, shotgun powder (not even going to consider that!) Actually, I'm only interested in the rifle powders, particularly ones that come close to filling the case. The rifle is a 1-in-10 twist.
I am hoping for pretty decent velocity with perhaps 120gr boolits but as light as 100gr will do if that's what gets the velocity up.