@Bander124 I don't know if the Uragan compact will have enough "horsepower" to push the slugs.
If I remember correctly, out of the box the Uragan compact only pushed pellets up to around 14 to 15 ft/lbs. I remember the specs when I was looking for a Compact Czech made rifle, I liked the Uragan, but I didn't go with it because of the low ft/lbs rating. I tried some NSA 15 (?) gr .177 in my Brocock Compatto Sniper XR, which puts out to 18/19 ft./lbs wtin JSB Hades and the NSA slugs didn't go above 700 fps if I remember correctly, thus making it not worth shooting the slugs. But I see NSA now has 12.5 gr. slugs in .177 so who knows maybe those will work in your Uragan.