300 rum and 240gr matchkings

[Mutt-roc]

i have a 300 rum and bought some 240 gr matchkings and i am wondering what type of powder and how much powder to use to shoot them i have RL25 or if u know a website i can get the info off of cause i cant find one.thanx

mutt

 

[.308--win]

Try this:http://www.hodgdon.com/

Perry

 

[Eagleye]

Mutt; If your 300 RUM has the 1-10" twist, it may not stabilize those Loooonnnnggg 240 MK's, but it's probably worth a try anyway. The 220 MK may be a better way to fly. I would be looking at AA8700 or H5010 for those heavyweights in that big case. Regards, Eagleye.

 

[Mutt-roc]

i have shot the 220 and have had reasonable sucess but it could be better. i have read a few ppl shot the 240 with a 1-10'' twist and got them to stabalize so im hoping it will work out cause the bc is.711 so they should work deadly i just hope i can get them around 2800 to 3000fps. but i need some info on how much powder to use.