So today is my 45th birthday and for my fun time I decided to go do some seating depth load testing at the Keokuk Co. Sportsmen's Club 100 yd range this afternoon.
I have settled on my load for my .243 @ 39.8 gr of IMR 4350 but wanted to see about settling on a seating depth for the utmost accuracy I can get from her for competition. I took out 25 rounds, 5 rounds at each seating depth, loaded @ .004 differences in seating depth ranging from 2.282 base to ogive up to 2.298. I hit the lands of my rifle @ 2.312 so I tested from .014 off the lands out to .030 off the lands.
Here were the results on paper...............
So it looks like the seating depth I want to be at is going to be from 2.290 to 2.294? , they seem to be the most stable of all the groups so I might just settle on a 2.292 base to ogive seating depth and see how that does for me.
Now on to the fun part.........
I used 2 rounds from 2 different groups to warm up with and get the barrel warmed up/fouled up as I had just done a good cleaning on the rifle just before I took her out. So after shooting my groups I still had 2 rounds left from 3 different groups, 6 rounds. I had noticed flies landing on the target backing I had set up on and thought, what the heck, lets see if I can shoot the flies! I had to be patient and wait for each opportunity. The first shot I just missed a fly by about 1/4", the second.....SPLAT! So I ended up taking 6 shots at flies and connected on 3 of the 6 shots and as they say, with no pictures, it didn't happen so here's the pics of the holes/fly guts on the 3 shots I connected on.
Victim #1.....................
Victim#2.....................
Victim#3.....................
That was some fun shooting today!
Trevor
I have settled on my load for my .243 @ 39.8 gr of IMR 4350 but wanted to see about settling on a seating depth for the utmost accuracy I can get from her for competition. I took out 25 rounds, 5 rounds at each seating depth, loaded @ .004 differences in seating depth ranging from 2.282 base to ogive up to 2.298. I hit the lands of my rifle @ 2.312 so I tested from .014 off the lands out to .030 off the lands.
Here were the results on paper...............

So it looks like the seating depth I want to be at is going to be from 2.290 to 2.294? , they seem to be the most stable of all the groups so I might just settle on a 2.292 base to ogive seating depth and see how that does for me.
Now on to the fun part.........
I used 2 rounds from 2 different groups to warm up with and get the barrel warmed up/fouled up as I had just done a good cleaning on the rifle just before I took her out. So after shooting my groups I still had 2 rounds left from 3 different groups, 6 rounds. I had noticed flies landing on the target backing I had set up on and thought, what the heck, lets see if I can shoot the flies! I had to be patient and wait for each opportunity. The first shot I just missed a fly by about 1/4", the second.....SPLAT! So I ended up taking 6 shots at flies and connected on 3 of the 6 shots and as they say, with no pictures, it didn't happen so here's the pics of the holes/fly guts on the 3 shots I connected on.
Victim #1.....................

Victim#2.....................

Victim#3.....................

That was some fun shooting today!
Trevor