Rubbing handguard?

[Cdn303]

Hi all,

So I finally was able to shoot my new-to-me No4Mk2. I had noticed when I got it that there was a rub mark on the top of the barrel under where the upper band sits.

Anyhow, the first group I got is circled in red. So I took the upper hand guard off and shot another 5 rounds, lime green. The paper is 4.25" x 5.5" (1/4 sheet). Ignore the other tape marks and the writing.



So should I be relieving the inside of the hand guard to stop the rubbing? That is what would cause the vertical stringing like that, correct?

I am pretty sure the horizontal spacing on the green group was me, with a little bit of wind thrown in.

Thanks

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