296 wasn't made until 1980???...Where did you get that????...I'm looking at a Winchester manual right now which was REPRINTED in 1973 which gives data for 296.....and in it,they clearly state that one should not reduce loads because of LOWER PRESSURE CAUSING SQUIBBS....I have been handloading for over 40 years.....One of the powders that I used early on was H110 and H110 and W296 were ALWAYS the same powder.

When too little pressure causes a squibb load and the bullet lodges in the barrel and then someone fires a round behind it,the obstruction in the barrel will cause it to burst.....this has absolutely nothing to do with which powder caused the squibb nor the round that follows it.

Downloading 296 and H110 causes TOO LITTLE PRESSURE.....NOT TOO MUCH!!!!!

You have been making up facts as you go along and now you're pretending otherwise.You can't give the specifics of your claims because there aren't any.