.223 newbie questions

[JB101]

As far as I can find out sp8 was developed for 9mm
There is not a lot of info on Sp9 for 223 that I could find🙁

I would suggest staying with a more known powder for 223 such as N140 as there is a lot more info on that available.

[tinbum]

As far as I can find out sp8 was developed for 9mm
There is not a lot of info on Sp9 for 223 that I could find🙁

I would suggest staying with a more known powder for 223 such as N140 as there is a lot more info on that available.

I am very limited as to which powders I can get, the N130/133/140 are all out, I can get Vectan SP7 in a 2kg tub only or tu3000 in 2kg or 500g which would be better for testing

[TVRGREG]

Looking at the burn rates for vectan tu 3000, sp7 and tu 5000 against N133 to N140 you should be ok.
I would use tu 3000 and sp7 on the 55-60grn and tu 5000 on 69grn heads.

[aris]

Don't mess about. Use published and tested load data.

https://www.xxl-reloading.com/2016-V...eloading-Guide

Click on the data sheet tab to get full load data for all calibres, but here is .223 rem

[tinbum]

Don't mess about. Use published and tested load data.

https://www.xxl-reloading.com/2016-V...eloading-Guide

Click on the data sheet tab to get full load data for all calibres, but here is .223 rem

Thanks, I'm not going freestyling, I'm just curious.