Extreme Spread

[TubbyT223]

I have been shooting SK LR, Match, Center X and ELEY team and match. Just with the supply of ammo. I am having to lot hop. What would you say you would want your ES to be for rimfire. I’m going to try to do some lot testing in the fall.

 

[Masojoh]

My match ammo is all 25 or lower across 30+ round strings. Mostly eley, but some SK long range match. I have a lot of center X that is around 30 and shoots great.

I had 3 lots of tenex once that would all be 15-17. But they did not group as well as the other lots I was shooting.

 

[TubbyT223]

My current lot of SK is 36.6 over 80 shots this morning. It does ok but loves to throw a 1130 fps and then a 1105 fps. On stages with small targets kinda far that has not been going well

 

[RWT510]

Curious is there any method to lessen the spread. Would keeping the ammo in a more controlled environment such as an ice chest Before shooting make a difference? Asking as I have experienced major spreads when the box is left in the sun.

 

[6.5SH]

Curious is there any method to lessen the spread. Would keeping the ammo in a more controlled environment such as an ice chest Before shooting make a difference? Asking as I have experienced major spreads when the box is left in the sun.

I try to keep my ammo between 70-90 F. I use a soft-sided lunch "box" with nothing, ice packs or USB hand warmers depending on the temperature.

 

[J_D]

Don't focus on ES or SD entirely. They are data points, but I literally have ammo that's higher than I used to chase, and it shoots great in the gun. Just use the target as the measuring stick. If its repeatable it will work. The sample size is important.

 

[TubbyT223]

Don't focus on ES or SD entirely. They are data points, but I literally have ammo that's higher than I used to chase, and it shoots great in the gun. Just use the target as the measuring stick. If its repeatable it will work. The sample size is important.

This lot of SK LR has not been great. At the time it was kinda get what you get and my chamber was cut for lapua/sk. I am now getting a barrel cut that is more in the middle of the road.

This lot and the ES works ok for PRS but we also have rifle league where you do kyl. This extremes on each end are screwing me.

In prs on a 3/4 ipsc at 200 it will shoot a wad the. The fast will be 2/10s high. Not a big deal on that size target but something smaller it’s off.

I’m more or less getting ideas on how to test the next lot.

 

[bobby1028]

Lot's of factors come into play at 200yds besides ES/SD. If I can get 20 to 30 with single digit SD over a 50 rd session I'm happy, unless those results don't match on target. Don't beat yourself up, 22lr would get boring if it shot sub moa @200 all day.

 

[TubbyT223]

Lot's of factors come into play at 200yds besides ES/SD. If I can get 20 to 30 with single digit SD over a 50 rd session I'm happy, unless those results don't match on target. Don't beat yourself up, 22lr would get boring if it shot sub moa @200 all day.

See this is the talk I like. Anytime I’m taking 200 and 300 serious it’s no wind and will ward them up at both. When it changes POI look at my Garmin and it is the extreme high or low.

This lot has a decent SD of 8 but ES is super high.