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<blockquote data-quote="25WSM" data-source="post: 2117202" data-attributes="member: 38048">I didn&#039;t read every post word for word but the main thing I would look at is ignition. I can&#039;t get any load to shoot that big a spread in my rifles. A bad es for me is 20 and it&#039;s not hard at all to get in the 6 to 8 range.&nbsp; But since it was very cold you need to have a perfectly clean bolt&nbsp; Clean your firing pin and spring with lighter fluid and put it back together and see if that helps. clean your trigger unit while your at it. The zippo fluid leaves a very small film of oil on your parts that won&#039;t gum up in the cold. This will ensure you have proper firing pin strike. Also if you are sizing too far and creating too much headspace it will cause this and seating primers too shallow .&nbsp; They must be seated all the way down. All these things can cause poor ignition. Just because it goes bang every time doesn&#039;t mean it&#039;s good. On my match rifles I change out my firing pin spring every season. Good ignition is crucial for low es and sd numbers. Your brass and loads would have to be totally junk to get numbers that high.&nbsp; I highly doubt they are the issue. shep</blockquote>

[QUOTE="25WSM, post: 2117202, member: 38048"] I didn’t read every post word for word but the main thing I would look at is ignition. I can’t get any load to shoot that big a spread in my rifles. A bad es for me is 20 and it’s not hard at all to get in the 6 to 8 range. But since it was very cold you need to have a perfectly clean bolt Clean your firing pin and spring with lighter fluid and put it back together and see if that helps. clean your trigger unit while your at it. The zippo fluid leaves a very small film of oil on your parts that won’t gum up in the cold. This will ensure you have proper firing pin strike. Also if you are sizing too far and creating too much headspace it will cause this and seating primers too shallow . They must be seated all the way down. All these things can cause poor ignition. Just because it goes bang every time doesn’t mean it’s good. On my match rifles I change out my firing pin spring every season. Good ignition is crucial for low es and sd numbers. Your brass and loads would have to be totally junk to get numbers that high. I highly doubt they are the issue. shep [/QUOTE]

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