If you go with the Texan, pay the extra and go with the Texan SS. A big airgun like that without a shrouded barrel is going to be much louder than you imagine. Popping the valve on 3,000 psi makes noise.
ETA- Note the very first review mentions noise on the "moderated" Texan SS
"Texan SS, It's the Bomb
I have been looking for a new hunting challenge and this year I found it, Big Bore airgun hunting in Texas. The problem was, I could find some big bore guns, but not the one I was looking for, the Texan SS in .45 caliber. To my surprise, the company rolled some out to the dealers and I immediately jumped on one. Granted, the season was almost over, but I quickly casted some slugs, sighted the gun in and set out on a pig adventure to the ranch. The first morning sit went great, pigs came in and I dropped one on the spot with a shot to the ear. The gun is a little loud and the pigs scattered, but didn't run far enough as I was able to load another slug and drop another at 50-yards."
Also need to consider safe fields of fire. These are not daisy red riders. I wouldn't shoot a .45 at 1,000 fps anywhere that I wouldn't shoot a 12 gauge.
