Customized AEA Precision Challenger Bullpup. 22Cal 1200FPS JSB14.5 GR 70FPE. 25Cal 1100FPS JSB 25.4GR 80FPE. 30Cal 1080FPS JSB44.75GR 100 FPE. 357Cal 950FPS JSB44.75GR 160 FPE.