Here are few pics of some pellets.
The JSB Diabolo Exacts are 15.9 grains. I have read where the air arms pellets are made by JSB. I have to admit these JSBs are the most accurate I have tried.
These non-toxic pellets from Dynamic are very interesting. The XP2 (14.5 grains) has a hollow point and a long body. The TM2 (17 grains) has a domed point and a long body. The SN2 (12.85 grains) has a domed point and a medium length body. I am comparing the relative lengths to the diabolos.
The first firing pattern was very unpredictable. Firing the dynamics was like shooting a totally different rifle. The spring recoil sounded and felt different. More solid and poignant, I believe this was dieseling. The diabolos were a tad higher than some daisies I had been using. Then the TM2s went way high. Then the XP2s went way low and to the left. Then the SN2s went low and way to the right. Note I am aiming at the center dot on the paper, 3 shot groups each. It was early in the morning, no wind but a fair amount of humidity. I cannot explain these results. Either the pellets were tumbling or the gun was dieseling.
This was the result after firing a paper of diabolos and rezeroing. These results actually make sense given the weight of the projectiles. Note I was not always firing at the center dot on the paper. In general the TMs went low like they should have being the heavier projectile. Accuracy was not good however. I fired a 3 round group of diabolos before and after the dynamics. On the final 3 round group of diabolos the pattern was erratic. I believe this was due to dieseling. After letting the rifle cool and finishing another sheet of diabolos accuracy was restored. Clearly firing the dynamics causes this rifle to diesel.
This shows the relative penetration of the pellets into a 3/4 sheet of plywood. To do this I fired a TM2, waited then aimed at the TM2 and fired a JSB diabolo, then aimed at the TM2 again and fired an SN2 then aimed at the TM2 again and fired an XP2. The SN2s are very close in accuracy to the JSBs and fly just a touch higher than the JSBs which is expected given their weights.
