I have bought some .430 diameter bullets from the "Missouri Bullet Company" to load and shoot in my Ruger Super Black Hawk in .44 Magnum. These bullets are 300 grain WFN with a Brinell number of 18. I plan on using 296/110 type of powder. One manual (Lyman) says I should use "gas checks" on the bullets. I don't have any experience using these and frankly don't want to use them. Will these bullets lead my barrel if I don't and if I do use them will I have to account for the weight of the "gas check" along with the weight of the bullet? The velocity I might get is unknown to me at this time but I would "guess" somewhere between 1000 and possibly 1200fps. I am not sure at what velocity this bullet would start leading my barrel. I sure would like some help. Thanks for any answers I might get. .
