So I've decided to commit to shooting an air gun for PRS and NRL-22 matches. My current laser gun (Delta Wolf .30) won't work because I would have to use pellets for PRS matches (out to 350 yards) and the only magazine option I can find bigger than 8 rounds is a Charlie mag. So I'm 85% sold on a Panthera, but I'm agonizing over .22 or .25. Strelok to the rescue.
I got my dope for my current competition 22lr at 100 yard, 200 yards and 300 yards with the mils for a 10 mph side wind at each yardage. Then I did the same for my .30 Zan pellets in my Delta Wolf. Then I started playing with .22 and .25 slugs and different velocities. The results were pretty amazing (on paper). I also put in some "known good" settings for some of the slugs to try to get more useful data (the .25 Kings at 885 fps, the NSA 31.2gr at 1000 fps). Here is my data, again this is all straight out of Strelok. The numbers are pretty solid for the first two entries, everything else is theoretical. The data points are in mils, not inches.
So according to this (in theory) the .25 Altaros Smooth has the same BC as the .22 Altaros King so the numbers are the same at the same velocity. Because the .25 is 49.5 gr and the .22 is 40 grains, I feel like I should be looking at the .22 since I should be able to get the slugs up to speed easier with the slightly lighter weight. Plus the magazine capacity will be better with the .22.
In the real world, does the Altaros King .22 perform as well as the .25 Smooth? Are there reasons I should be looking at the .25 over the .22? My initial thought was to shoot the .25 because heavier is generally better when the wind is the biggest factor, but the PRS air rifle rules limit the projectile weight to 49 grains (and 50 grains for .30, so I couldn't use my Zan pellets even if I wanted to). So if I'm limited to 49 grains anyway, I think .22 might be the way to go to get better magazine capacity and maybe the ability to shoot a little hotter for a flatter trajectory. What is a realistic velocity to push Altaros Kings from a 700mm .22 Panthera?
I would appreciate feedback from anyone that has something to contribute. I posted here instead of in the PCP or Ammo sections because I didn't want to open this up to the peanut gallery that just regurgitates what some guy on another forum said about an Impact shooting Patriot slugs at an indoor 300 yard range in Antarctica.
I got my dope for my current competition 22lr at 100 yard, 200 yards and 300 yards with the mils for a 10 mph side wind at each yardage. Then I did the same for my .30 Zan pellets in my Delta Wolf. Then I started playing with .22 and .25 slugs and different velocities. The results were pretty amazing (on paper). I also put in some "known good" settings for some of the slugs to try to get more useful data (the .25 Kings at 885 fps, the NSA 31.2gr at 1000 fps). Here is my data, again this is all straight out of Strelok. The numbers are pretty solid for the first two entries, everything else is theoretical. The data points are in mils, not inches.
| 100y | 10mph wind | 200y | 10mph wind | 300y | 10mph wind | |
| RPR 22lr 1070 fps | 1.9 | 1.3 | 7.3 | 2.4 | 14.2 | 3.4 |
| Delta Wolf Zan .30 864 fps | 3 | 1.6 | 11.7 | 3.3 | 23.1 | 5.1 |
| 0.25 altaros ATP smooth 950 | 2 | 0.6 | 7.8 | 1.2 | 14.5 | 1.9 |
| 0.25 altaros atp smooth 885 | 2.4 | 0.6 | 9 | 1.2 | 16.7 | 1.8 |
| 0.22 altaros ATP King 950 | 2 | 0.6 | 7.8 | 1.2 | 14.5 | 1.9 |
| .22 nsa 31.2g 1000fps | 2 | 1.5 | 8.4 | 2.8 | 16.7 | 4.2 |
So according to this (in theory) the .25 Altaros Smooth has the same BC as the .22 Altaros King so the numbers are the same at the same velocity. Because the .25 is 49.5 gr and the .22 is 40 grains, I feel like I should be looking at the .22 since I should be able to get the slugs up to speed easier with the slightly lighter weight. Plus the magazine capacity will be better with the .22.
In the real world, does the Altaros King .22 perform as well as the .25 Smooth? Are there reasons I should be looking at the .25 over the .22? My initial thought was to shoot the .25 because heavier is generally better when the wind is the biggest factor, but the PRS air rifle rules limit the projectile weight to 49 grains (and 50 grains for .30, so I couldn't use my Zan pellets even if I wanted to). So if I'm limited to 49 grains anyway, I think .22 might be the way to go to get better magazine capacity and maybe the ability to shoot a little hotter for a flatter trajectory. What is a realistic velocity to push Altaros Kings from a 700mm .22 Panthera?
I would appreciate feedback from anyone that has something to contribute. I posted here instead of in the PCP or Ammo sections because I didn't want to open this up to the peanut gallery that just regurgitates what some guy on another forum said about an Impact shooting Patriot slugs at an indoor 300 yard range in Antarctica.
