Re: 3750 fps 257 weatherby
Holy crap!!! That's some serious speed! My .257 Wby load with the Berger 115 VLD's is right around 3,300 MV and grouping very nicely. I'm using 70.0gr of H1000 for it, seated 0.005" shorter than magazine length.
Might I pry for your load data and COL?
"I'm just a peckerwood who lives in the hills with too many guns..." - Bob Lee Swagger
"Give me a minute...I'm good. Give me an hour...I'm great. Give me 6 months...And I'm unbeatable." - Col. Hannibal Smith
Originally Posted by WildRose
The 284 is to the STW what a tricycle is to a Ninja.