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Long Range Hunting & Shooting
Question for the long range shooters
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<blockquote data-quote="Greyfox" data-source="post: 552159" data-attributes="member: 10291"><p>I don't think seating depth is your issue. I have had the opposite issue where my groups are larger at 100 yards than at the longer distances. This is typically attributable to bullet stabilization. I don't think changing seating depth will fix your problem. I would look elsewhere before I would change a load that groups .5 MOA at 100. Some questions would be:</p><p>Is scope parallax properly adjusted?</p><p>Reticle/target relationship optimized for .5 MOA shooting at longer ranges?</p><p>Wind/ mirage conditions effecting longer range shooting. This is typically what causes me to have the problem you describe.</p><p>Is your barrel twist rate matched to your bullet?</p><p>Is the barrel condition the same when you shoot long range( temperature, cleanliness)?</p><p></p><p>If you were to optimize seating depth, changing in .025" increments until you get your tightest group. You could then fine tune if necessary. This is done at 100 yards so other variables like wind and mirage don't skew your results. As mentioned, your </p><p>load seems ok if it is consistent at 100 yards and your twist rate is matched to the bullet.</p><p>Hope this helps.</p></blockquote><p></p>
[QUOTE="Greyfox, post: 552159, member: 10291"] I don't think seating depth is your issue. I have had the opposite issue where my groups are larger at 100 yards than at the longer distances. This is typically attributable to bullet stabilization. I don't think changing seating depth will fix your problem. I would look elsewhere before I would change a load that groups .5 MOA at 100. Some questions would be: Is scope parallax properly adjusted? Reticle/target relationship optimized for .5 MOA shooting at longer ranges? Wind/ mirage conditions effecting longer range shooting. This is typically what causes me to have the problem you describe. Is your barrel twist rate matched to your bullet? Is the barrel condition the same when you shoot long range( temperature, cleanliness)? If you were to optimize seating depth, changing in .025" increments until you get your tightest group. You could then fine tune if necessary. This is done at 100 yards so other variables like wind and mirage don't skew your results. As mentioned, your load seems ok if it is consistent at 100 yards and your twist rate is matched to the bullet. Hope this helps. [/QUOTE]
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Question for the long range shooters
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