Trying to understand load data, I'm new to this why when I look on one web site does it list powders I can't find or bullets I haven't got?
I have a 243 I asked a question before but struggled to find components.
I bought 80gr Sierra SBT loaded 20 with ramshot big game a mates powder data from Sierra down load found a load that clover leafed went to get powder none available for 6 to 9 week's!
So bought 100gr Sierra spitzer and hunter powder now looking on westerns data sheet who make the powder they list hunter for 100gr but don't list any Sierra 80gr loads for there powders!
Can I use data for other 80gr bullets if not who works out loads and how?
I haven't done any thing dangerous yet and don't want to
Cheers in advance for any advice