With feedback from folks, version 0,3 of Musket to Rifle brings a ton of tweaks, improved wordings as well as several rewritten sections. It also includes the weapons required up to circa 1880 or so. 

If you are a 10+ dollar Patreon, you can grab the file from there, otherwise paypal me 10 dollars and you will get updates as they happen, plus 10 dollars off once it goes up on Wargame Vault.