When a special weight is wanted in any caliber, just tell me what you want and I'll do my best to hit it. If you know a length and give me that it makes life real easy for me, because that's the way I set the mold lathe up to get weight, but diameters and alloys make the weight drift around a bit.
So when you read my catalog or website. If you want something you don't see, and the caliber is not smaller than 22 or larger than 8 bore, ask and I can probably give you something to make your shooting iron put a grin on your face.