I wouldn't expect an exit with either... and I wouldn't NOT expect an exit with either.
The concensus I was reading was that they are pretty inconsistent. If they do pass through, expect a pretty substantial hole. If they don't, expect to see even more jello in the cavity.
I have a Sirui Am-284, I was happy with it for binos and light rifle work.
I did not like how short it was. I installed a riser on it, and it just made it too funky to carry. when I bought my Leofoto with the 55mm head, I was quite surprised how much difference the leg diameter made for...
This is a model 10 BA Stealth SA take off that I picked up a while back. Tried it, would like to take this rifle back to a stock or a different chassis. It does have some small rub marks from the past couple hunting seasons, I can send you more detailed pics if you are concerned.
Short Action...
Leofoto Ls 364 is what I have. Works great for the money. I refuse to try a $800+ tripod so I don't know what I am missing. But the 364 is a great unit for the money
MDT vertical grip Premier, Brand new in the box still - $50 shipped
MDT Vertical grip Elite, took the the range once - $80 shipped
Both - $120 shipped
Bought them, installed one on a ruger precision 22 and just preferred my hogue grip.
Trades considered chassis parts, rails, etc.
My plinking rig that I use weighs about 14.5lbs in 22-250AI. My hunting 6.5CM is right at 12lbs. the 6CM shorty is right at 10lbs. My 6.5PRC comes in at 13.5 lbs.
After 14lbs, things get tough to manipulate from prone, but all of my guns seem to recoil about the same.
I use to have a 18" 6.5CM...