Need some advice

[dapper]

Hey guys. I have an original 13g sxs that I have been using for small game.  Recently I had a day where I shot, and hit, 2 rabbits but did not even slow them down. Using even volume 2f and a mix of 4 &5 shot.  First hit was with a full cushion wad and the second with a half. Both loaded with over powder card and over shot card. Now this same load has taken many squirrels at different distances. So, what gives?

[bob in the woods]

I was told that you can use a juice can to test the penetration of shotgun loads, if your shot won't perforate the can at a given distance, you need to adjust the load. Also test your pattern . You might have holes a rabbit can jump through 

[Mike Brooks]

You need to put your load on paper and see what it's doing.

[Longknife]

What gives?....YOU MISSED!!!!!!!!!

[dapper]

Thanks guys. 

[Pukka Bundook]

2 1/4 drams or more should get the job done.   I used this load in a 14 bore for years and it worked on ducks, with a somewhat heavier charge of lead.  (1 1/4 Oz.)
Have a double 19 bore flint, and it liked 2 1/2 drams though, and 1  1/4 Oz .  Worked very well with that load.
Try on paper for pattern, then tin cans.    5 or 6 hits on a bean can at 40 yards would be good.