If it's heavier bullets you want...
You probably don't cast, but I do and two heavier-than spec bullets I cast shoot lights-out from just about all my carbines.
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The one on the left is from an RCBS 30-115SP mold and weighs around 116-118 grs. I use the same data as I do for a 110 gr. FMJ and the resulting velocities are all but identical. As I said, accuracy is wonderful-
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Matt's Bullets actually offers this bullet, although it's sized .312". I bet if you contacted him he'd size them .309" for your carbine.
The one on the right from a Lyman 311578 mold and weighs about 125 grs. I keep it about 1850 fps and it too is way more accurate than one would expect-
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I'm not really sure the 130 gr. Speer work.
35W