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I found the same results as Huntsika I used 2217 and was getting 2800fps with the 130 Nosler AB and that had a 20" barrel.
I tried RL17 but it was no better so I sold the bits and went down the...

Have had a 6.5x 284 with 20" and could only get 2800fps with 130grns and 57 grn of powder now I get that with my 260 and 46 grns of power.
Barrel also gets very hot after 3 shots. I think you need a...