Hey there. Very new to this, so please go easy! I'll finally have everything for shooting my rifle after a month or so of scrounging up supplies. Just waiting on the black powder itself, which I should be getting tomorrow. I purchased my first black powder/muzzleloading firearm last month. Its a Pedersoli P53 Three Band rifled musket, I had an opportunity to purchase an original earlier, but the seller wasn't too keen on the idea of me putting rounds through it. So I figured getting a modern reproduction to start out with would probably be the safest bet to get introduced to this kind of thing. I've been doing a fair bit of research from youtube videos and other forums, but there are a few things i'm still not quite sure on. First off would be on ammunition. Finding .577 rounds were a bit of a pain up here. I have ordered molds specific for my rifle, but I wanted to grab a bunch of premade rounds to get started since it'll be some time before I can get my casting equipment together. I ordered some .578 hollow base bullets from a Canadian supplier (Jetbullets.com) since it was pretty much the only thing readily available at the time. A few other forums have suggested it should be fine, but I want to be double sure about a few things. A lot of folks really drive home not having a gap between the powder and the projectile, and I fully understand that. The bases on these look pretty deep (About 2/3rds deep as the bullet is long), and i'm not sure if that would be a problem. Should these be fine with just powder and lubed bullet? Or should I use a card/wad in between the charge and the bullet to make up for the open space between the powder and bullet cavity? I'm guessing that ramming the ball down would compress powder into that cavity, but I would like some input on that. I have also heard of folks filling that gap with bullet lube. Also on sizing. I do have a sizing die coming in tomorrow to bring it down to either .577 or .576 by Pedersoli. I've tested putting a .578 round into the barrel (Not enough to lose it at least) and I've found that the .578 doesn't have all that much trouble getting thumbed in. It almost feels as if its a perfect fit to the barrel itself. Would these be fine to shoot at .578 even if its considered oversized to the bore? I know that sizing them makes for ease of loading, but I am curious what I should be looking for to bring as much accuracy to the rifle as possible. I know I'll have a lot of experimenting with sizes/charge to achieve that, but any rule of thumb information would be much appreciated! Pictures of the projectiles are shown below. Another thing is on the weight of the projectile. These are all cast and weighed out to .578 at 425 grains of weight. The manual suggests I should be using a .577 620gr projectile, which won't be available to me until I get my casting supplies together. With the lighter weight of what I have, should I be setting my charge to a specific volume/weight with the lighter projectile? And if so, what kind of charge should I use to start shooting at for the first time? The manual suggests 60, with a max of 90 grains with the suggested bullet. While I see a lot of forums suggesting 40 grains to start, what would be considered too low of a charge? Lastly, on the idea of shooting in succession. Is there a period of time I should wait before reloading the rifle with powder after taking a shot? I'll be using Goex FFg as my powder. I just want to be able to play things safe for my first time. Thankyou for reading, I do apologize for the jumble of questions here, but I figured i'm in the best place for getting solid answers on this kind of stuff!