No doubt its 400yds, as your calculations match perfectly. Fun as heck isn't it?

Your videos are priceless Ron and they really give shooters a great example of the distances muzzleloaders are capable of shooting accurately.

I'm very fortunate that I have a Sportsman's Club, which has a 600 yard range so close. I normally shoot the range on weekdays, when most are working (retirement has its advantages). However sometimes there may be 3 or 4 others shooting when I get there. In most cases when you drive up, they'll go cold and tell you to go hang your targets. I drive down to 400yds and hang a couple targets and drive back. The range will go hot again and I'll just start setting up the rifle rest and getting things ready. Of course everyone sneaks a peak at everyone else's rifles, if only briefly. However.......... the hairy eyebrows and much more than a casual glance starts, when I start loading the muzzleloader. Actually you can almost hear their thoughts, which is always something like, 'That guy is nuts to think he can shoot a muzzleloader that far' or..... 'That guy shouldn't be able to legally own a firearm, let alone a muzzleloader.' Cracks me up.

Once you get the rifle settled in the rest and are ready to take the shot, the line suddenly becomes quieter. I know without even looking what's happening..... they're watching and/or are now looking through their spotting scopes at my targets and you know that inside, they're ready to start laughing.

Things suddenly start to change after the muzz goes off and the smoke clears. Sometimes they'll rush over before I can load, asking what the heck, "With a muzzleloader?" Other times they'll let me fire a group, then it gets really crowded around my bench.

With the right rifle, a good load, some understanding of the wind, most are surprised just how accurate a muzzleloader can be a truly long range.

I pulled this target after shooting. The three guys that were there and watched me shoot it, probably still can't believe what they had just seen.

Not trying to hijack your post Ron. Just an attempt to show others that shooting to 400yds with a muzzleloader can be done.