Run a 129sst in my 6.5x55 t3, 50 grains 4831 (compressed load), 2750 fps, will shoot under .5" when i do my part. Got some 140sst & 140amax which group good also just 2" low & 2" to the left. Always wanted to try some nosler partition to see how they go, but the 129sst works great, got a mate thats got the same rifle but his doesn't like the 129s at all.
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