Sabotloader, You might give the MSM Spitfire nipples a try if overall length is what you are looking for? They are the longest nipple i have ever seen, (I wish i had measured it) I found 1 for my Lyman Great Plains Hunter rifle, that nipple was long enough that my rifle would not go to half cock. I target shot the nipple and i wasn't impressed with durability, I started a thread about them on Castboolits way back and most folks swore by them being tough, maybe i got a bad one? My absolute favorite nipple is the Treso Ampco nipples from Buffalo Arms, they are TOUGH and hold up extremely well