Sorry for what might be remedial studies here, but I was just playing around the other day with the SWFA SS 16x I have on a Cricket. I wanted to share some results to help document it and clarify things for myself. Pellets used are JSB King Heavy (.25) at 840 fps. I started at the bottom right (you can kind of see remnants of a sticker there).
From the bottom right, then I took shots at:
So for me 10 clicks was a bit under 2 inches so the math works out fairly well. My understanding is that 1 milliradian at 100 yards is 3.6 inches and 1 click (1/10 of a milliradian) at 50 yards is about .18 inch or 3/16 of an inch.
I also wanted to play with various zero distances. I set up 5 spots in my yard that had easy points of reference at 7 yards, 19 yards, 35 yards, 50 yards, and 62 yards. I shot a series of targets where I zeroed at 35, 50, and 62 yards keeping my aim point the same (the 1/2 inch stickers). Again, no surprises here, but it was a fun test to clarify what's really happening with my gun and its trajectory with this particular pellet. Here are some pics. After doing this i returned my zero setting to 50 yards
35 yard zero
(I hadn't noticed that my air was running low on the 62 yard group here, so I repeated under the 35 yard bullseye after topping off the gun.)
50 yard zero
62 yard zero
Here's my reality vs. what chairgun predicts at the 62 yard zero:
From the bottom right, then I took shots at:
- 10 clicks right
- 10 clicks right
- 20 clicks right
- 10 clicks right
- 10 clicks right
- 10 clicks right
- 40 clicks left
- 20 clicks down
- 10 clicks down
So for me 10 clicks was a bit under 2 inches so the math works out fairly well. My understanding is that 1 milliradian at 100 yards is 3.6 inches and 1 click (1/10 of a milliradian) at 50 yards is about .18 inch or 3/16 of an inch.
- 3 clicks (3/10 of a milliradian) at 50 yards is just over 1/2 inch.
- 10 clicks (1 milliradian) at 50 yards is just under two inches (1.8 to be exact)
- 40 clicks along the top came out right about 7 inches where the math says that should be 7.2 inches, so pretty close there too.
I also wanted to play with various zero distances. I set up 5 spots in my yard that had easy points of reference at 7 yards, 19 yards, 35 yards, 50 yards, and 62 yards. I shot a series of targets where I zeroed at 35, 50, and 62 yards keeping my aim point the same (the 1/2 inch stickers). Again, no surprises here, but it was a fun test to clarify what's really happening with my gun and its trajectory with this particular pellet. Here are some pics. After doing this i returned my zero setting to 50 yards
35 yard zero
(I hadn't noticed that my air was running low on the 62 yard group here, so I repeated under the 35 yard bullseye after topping off the gun.)
50 yard zero
62 yard zero
Here's my reality vs. what chairgun predicts at the 62 yard zero:
