I started to do some testing with my 284 Shehane F-Open rifle. I am a bit of a tinkerer so I can't help myself. Anyways, I did some testing with brass 3 times fired and brass I just annealed and shot them side-by-side over the course of a couple outings.
I noticed that with the brass at least 3 times fired, I was getting bigger groups (sub 3/8" 5-shot groups) at 100 yards along with a an ES/SD of 22/11.7.
I am starting to religiously anneal every firing and my groups shrunk down to 1/4" or better and my ES/SD went down almost in half, 13/5.7 respectively.
Load was exactly the same. Temperature was about the same (60 degrees and same range and similar conditions).
I've just about convinced myself that annealing after every firing is the way to go. I would have to guess that bullet release is more consistent with more consistent neck tension which is giving me better accuracy and chrono numbers. I am using a Magneto for chrono numbers and shooting without the chrono for accuracy tests so I am doing these two tests independently, which may make the data a little skewed.
Have you noticed improvements like this?
I noticed that with the brass at least 3 times fired, I was getting bigger groups (sub 3/8" 5-shot groups) at 100 yards along with a an ES/SD of 22/11.7.
I am starting to religiously anneal every firing and my groups shrunk down to 1/4" or better and my ES/SD went down almost in half, 13/5.7 respectively.
Load was exactly the same. Temperature was about the same (60 degrees and same range and similar conditions).
I've just about convinced myself that annealing after every firing is the way to go. I would have to guess that bullet release is more consistent with more consistent neck tension which is giving me better accuracy and chrono numbers. I am using a Magneto for chrono numbers and shooting without the chrono for accuracy tests so I am doing these two tests independently, which may make the data a little skewed.
Have you noticed improvements like this?
