You are talking apples to oranges here. If you take the wood stocks off your Dad's gun and put on plastic and aircraft aluminum with a shorter LOP, guess what, your Dad's gun will be light too. They are the same gun.
The psychology of shotgunning is well documented for the past 100 years and the issues and myths today are often the same ones written about in the 30's and 40's
Without a description of your Dad's gun and the ammo you shot in it, I am just trying to point you to the fact LOP has the biggest effect on the feel of the gun, followed by weight. Always in that order. 18" vs 20" is a non issue, just leave one or two less round in the tube to make the longer gun feel snappier
Ask around, a few people here will tell you I know a few things about shotguns. What I am telling you is it helps to know these things before you buy.
My light weight gun is lighter than any gun listed here and my GF who stands almost 5'11" and her step sister who is about 4'11" both shoot it and like it. Again, many ways to mitigate recoil.
Personally I never suggest getting the FN as a first gun but in the end it is a good gun and better then no gun.
The psychology of shotgunning is well documented for the past 100 years and the issues and myths today are often the same ones written about in the 30's and 40's
Without a description of your Dad's gun and the ammo you shot in it, I am just trying to point you to the fact LOP has the biggest effect on the feel of the gun, followed by weight. Always in that order. 18" vs 20" is a non issue, just leave one or two less round in the tube to make the longer gun feel snappier
Ask around, a few people here will tell you I know a few things about shotguns. What I am telling you is it helps to know these things before you buy.
My light weight gun is lighter than any gun listed here and my GF who stands almost 5'11" and her step sister who is about 4'11" both shoot it and like it. Again, many ways to mitigate recoil.
Personally I never suggest getting the FN as a first gun but in the end it is a good gun and better then no gun.