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I am using SMK 220’s now. I started with 240’s but it appeared that they weren’t stabilizing in my 1:8 Hart barrel. I have some H110 on hand and report back with my results.
Can anyone explain why the first couple shots fired are faster on a cold bore? The barrel is new and has between 100 and 120 rounds fired so far. I cleaned the bore when I first got the gun and maybe once since then. The gunsmith who built the gun broke in the barrel. Could there be some type of cutting lubricant left over from the manufacture of the barrel that is leaching out? That may sound crazy but I am at a loss for explanations.
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