Dear all, I have a No 4 Mk1 on which I've fitted a good quality modern x4 scope.

I'm getting frustrated with the grouping. For example, I've just fired 10 rounds at 100 yards. The first 5, 4 of the shots were in an inch group slap bang where I wanted them to go with one flyer about 3 to 4 inches off to the left. The second group, 3 shots bang on with 2 about 3 or 4 inches off to the right !!!

Does anyone have any idea what might be the cause or is this "a normal grouping".
Am I expecting too much ??

The rifling looks ok along its length although doing the bullet test in the muzzle does indicate a bit of wear.

I'm using home loads and tried various bullet weights with N140 but all pretty much the same results.

Any suggestions ?

Cheers.
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