For those who have been looking for info for the 257 Roy and Retumbo, here is what i got.
Weatherby brass
120 gr bullet
CCI 250 primers
Started at 68.0 and worked up to 72.5. I had no pressure signs at all but according to the quickload data that i had 72.5 might be running a little hot... not a big deal though...i got best groups at 71.0 - 71.5 (1/2"-3/4" @ 100 meters). The groups from 72.0 and up went to 2"... i didn't get to chrony the loads but according quickload they should be going about 3300.
I only had a couple of days to work this up and still need to play with it some more but i was impressed.
Killed a deer at 200 and watched him fall in my scope before the recoil pulled the sight picture off the animal...fell like he was struck by lightning :grin:
Hope this gives you all some where to start.
Brad
Weatherby brass
120 gr bullet
CCI 250 primers
Started at 68.0 and worked up to 72.5. I had no pressure signs at all but according to the quickload data that i had 72.5 might be running a little hot... not a big deal though...i got best groups at 71.0 - 71.5 (1/2"-3/4" @ 100 meters). The groups from 72.0 and up went to 2"... i didn't get to chrony the loads but according quickload they should be going about 3300.
I only had a couple of days to work this up and still need to play with it some more but i was impressed.
Killed a deer at 200 and watched him fall in my scope before the recoil pulled the sight picture off the animal...fell like he was struck by lightning :grin:
Hope this gives you all some where to start.
Brad
