They realize everyday they are losing more and more. Complete elimination of their corrupt .gov is now possible. The Iranians are now getting desperate.
Can't go wrong with the classic 168 or 175. The SMK 169 and 177 have shown great long-range results. Since you plan on single-loading/firing, the extra COAL of those projectiles won't be an issue if you won't be limited on keeping them at magazine length.