The T.Center maxie hunter bullet is available in two weights in 45 caliber:225 and 255gr. I bought a box of 255gr today and discovered that they are a perfect fit in my Ruger Old Army! I can fit about 38gr of H777 under the bullet with room for a .030 fiber wad, also(which protects the bullets base). I achieved a 2" group at 25yds, And the lube on the bullet seemed to work well with the H777 powder. I beleive that it will make a fine bullet for backup on a wild hog hunt this fall. Also, the 225gr with heavier charges should be adequate for whitetails if the shots are kept reasonably close. The only drawback is that the factory pre-lubed bullets are around $9.50 per 20, so one would have to buy a mold(if available) to be economical. The bullets slide easily into the chabmers, and shave lightly on the last bearing band, and seem to stay put under recoil of heavier charges