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« Last post by TDM on Today at 07:23:52 PM »
You can measure land to land to verify, but it should be a .50 so the .490 RBs are the place to start. I like using 3F in my .50's, but 2F is fine too. I find 50 grains is a good starting place when sighting in. Usually 70 gr for PRBs is all I use, occasionally 80. If your barrel twist allows conicals then 90-100 gr loads could be used. Your rifle will tell you what patches to use. It may like a .010, .015, .018, maybe even .020, I generally used .015 & .018. Good luck with it, should make a nice shooter.