Re: Learnings from Rimfire Comp Thread
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Carter Mayfield</div><div class="ubbcode-body">I have read anecdotally about group sizes increasing in the summer and decreasing in the winter. I didn't really believe it, but saw accuracy drop off when I ran out of a certain lot of Eley ammo AND the temperatures started rising. I went on a quest for the perfect lot of ammo... and could never achieve the heights of accuracy that I was reaching when I first got this gun. Until now.
Last weekend, I wasn't really shooting groups to measure, mainly to find zero. I ended up going home and measuring and the three 5-shot groups I fired AVERAGED 0.63 MOA at 110 yards.
This week, I shot my best 5 X 5 ever...
This 5X5 averaged 0.726 MOA with the biggest group being just a hair over MOA.
I tell you what... I am leaning towards the idea that moderate temps are best. It was a little below 80 today and in the same range last weekend. This is about what it was like when I had tight groups last year. I didn't even really feel like I was shooting well today. I am rusty as I have not been making it to the range my usual twice a week and actually missed about 3 weeks before going last week.
On the other hand, I also gave my rifle a thorough cleaning, but that was 2 sessions ago and I haven't cleaned it since. I guess if I knew exactly what caused great accuracy, I could bottle it, but it is still kind of a mystery to me. At 100 yards with a 22, there are so many variables, some days, I feel great and the holes don't fall in the right place, and some days, like today, I don't feel so great, but the holes seem to fall just right. Since I couldn't distinguish every hole, I didn't know I was having a good day until I walked up to get my target.
Anyone else notice any weather effects apart from wind that seem to impact accuracy? </div></div>
My SPS tactical .308 shoots better after 10 rounds when it's clean...I have tested many times and it coumes out that it is most accurate when the bore is DIRTY, maybe your 22 is the same and not the weather?