I've swabbed my traditional barrel with straight 91% alcohol for a long time now. I started doing this because when I was using a mix swab solution I had more hangfires, and misfires. In all the years I have been doing it, I have yet to have a flash fire from the alcohol patch coming into contact with any embers. Granted it could happen. I personally will continue to do it as it has worked do good for me in the past. This does not mean I recommend you do it, if you feel uncomfortable doing it then for all intent, don't do it. Remember the advise given on these forums is based on practical expereince and opinion and should be taken with a grain of salt. Just as loads that work in one rifle might now work for you. They are starting points. Some are pretty good ideas though. And a lot of the information is very useful.

On my inline rifles I use a mix of the alcohol and windshield fluid since they have a straight line ignition and more fire coming into it. I've nver had a problem with them having a hangfire.

As for blowing down the barrels, years ago, we used to do it all the time until a range officer warned us at a shoot that anyone caught doing it would be disqualified and sent from the range. I now have a handy little tool. Looks like a funnel with a plastic hose off it. You put the funnel in the muzzle and then from about two feet away, you blow into the hose and that blows clean the barrel smoke. The whole purpose as explained to me about blowing down the barrel was to blow embers out that might still be glowing down there....

I make it a point though of not putting any part of my body over the muzzle of a loaded rifle. I don't lean on the muzzle like Fess Parker in Daniel Boone used to do (remember those scenes) also I never leave a loaded rifle on the firing line in a gun vice and then walk in front of it. I actually saw a person do that.