Greetings,
Some scopes can be a bit cranky but one thing that crossed my mind is how the rifle was held for each group. Are you using a front rest and rear bag or are you using a bipod. The Model 7 is a lovely light rifle but they can be a bit lively. Think through your technique and make sure that you are doing everything the same. Make sure that the toe of the stock is not touching the bench and if you are shooting of a bipod are you preloading it the same for each group. I put a bit of sleeping mat on the bench to stop the rifle shooting away from the hard surface. Lastly are you walking up to the target between groups. If so are you sure that your shooting position is exactly the same. I make notes on adjustments on a pad on the bench and mark the targets later.
Regards Grandpamac.
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