cdad as you know I just traded bat my Lam U Mag for his Lightning. I own a Syn U Mag and now I own two of these Lightnings. I liked the first one so much I did the trade. Both of these Lightnings will shoot every bit as good as the U Mag. Although the recoil is quite a bit more than the U Mags but nothing that should bother you. If I shoot anything but Trip 7 fff I use a wad. These guns will shoot the RS, P, and Trip 7 with excellent accuracy. It is true they have a tighter bore than the U Mags. The 504s are tight but they shoot the lights out with them. The no excuses which are a 503 seems a little to loose but shoot awsome so if you can get Dan to cast you some 503.5 you should be good to go. I've got about 400 of the 504s left in 460grn but as soon as I start getting low my next order with Dan will be for some of the 503.5s in the 460grn. If you want a gun you can pack all day long in the mountains you could not find a better one than the Lightning. As savagescout knows I suck with computers and pictures. My last outing with the new Lightning and 1 power scope I had my last six shots making one big hole at 65 yards. This was with 70grns of P and a wad and the #11 remington caps. E-mail me if you have any more questions. My e-mail is [email protected].