like the guy's just a little older than me used to cover their rifles, you know guys like Jim Bridger, Dan Boone, and Fess Parker.
I understand that,,
What they could do, and what we "have to do" because of current laws are different.
We, have to have a full cover,, They just needed a sleeve,, and that's OK, there's a work around.
Find or buy a cheap canvas sock that fit's for rifle, on-line or even a local gun show ($10).
Then copy the sock with your hide,, but stop short and finish the end as a sock, some-where's around the lock/trigger of your rifle,(I like to cover the lock).
Then make a "boot" section with a draw string,, that will fit over the butt and a few inches beyond the end of the sock.
Now you have two(2) pieces
One that will be a sleeve to protect your rifle that you can walk around with,, and the other end(boot) will be for full closure that ties, for legal transport.
That's the easiest way to make one.