I've never shot 62gr steel core and thought the accuracy was acceptable. I have a little left over from some sale during a drought; it's left over because I don't shoot it.
I can shoot 55gr from 1:7, 1:8 and 1:12 barrels and get enough accuracy. 62gr and 77gr from the 1:12 is comic.
I do like 69, 75 and 77gr ammunition I've tried, but ordinary 55gr will give me 3moa and the heavier stuff while better isn't twice as accurate, but may be about twice as expensive.
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