Thread: looking for quickload data

Hi all. Could someone with quickload look up some data for me? I want to find out how much Ap70n powder (might need to use Unique?) with winlr primers in 303 with 167gn cast bullets to get 1000-1200fps. And same powder and primers in 243 with 106gn cast to get same velocity. Thanks

Originally Posted by Three O'Three

Hi all. Could someone with quickload look up some data for me? I want to find out how much Ap70n powder (might need to use Unique?) with winlr primers in 303 with 167gn cast bullets to get 1000-1200fps. And same powder and primers in 243 with 106gn cast to get same velocity. Thanks

The standard load for Unique/AP70 with cast bullets in medium size cases is 10.0 grains,It has been used for over 100 years so is well tested
Will probably be a bit faster than 1000-1200

Originally Posted by shooternz

The standard load for Unique/AP70 with cast bullets in medium size cases is 10.0 grains,It has been used for over 100 years so is well tested
Will probably be a bit faster than 1000-1200

I don't have a chrony but it does feel much a lot faster than 1000-1200. I might use some colder primers, see if that get the velocity down.

Originally Posted by Three O'Three

I don't have a chrony but it does feel much a lot faster than 1000-1200. I might use some colder primers, see if that get the velocity down.

You could back it off a little at .3 grain steps, I think you are being the wrong term for the primers Milder would be a better description of non magnum primers.