K;

Welcome to the forums bro. Lots of opinons, lies and even some useful information to be found here.

Here is my take on what happened with your two most recent does.

As you noted, you didn't get an exit hole with either, so what you have to look at is exactly where the only hole in the deer was located. In one instance, you have a doe quartering away, which is a decent shot to take really, but what no doubt happened is the bullet, upon hitting the deer, expanded rapidly. Swift makes a heck of a bullet, and I'm not saying it cratered (blew up), but a 270 has a flat trajectory as you mentioned; in laymen's terms that means the bullet is really dang fast. Take a light bullet and lots of speed, and you can get explosive results. Anyway, Based on where you hit that first doe, you likely experienced some intesinal coils sliding forward and clogging the bullet hole on the near side. There is not a heck of a lot of blood pressure going through parts of the liver or the upper stomach, so unless you hit a big artery near the skin, you won't get much blood. And what you will get will be sprays of muscle blood, and drops of dark liver blood. Possibly even stomach matter. I expect when you opened that deer up, it looked like some one smashed a gallon sized jar of grape jelly inside. By any chance did you recover the bullet? Did it stay together well?

Second doe is a bit easier, a shot directly through the shoulder bone on a quartering to angle will usually have the bullet lodge in the offside hindquarter. Since you hit the deer through the bone, lots of those bone fragments sort of act like leaves in a storm drain, stopping up the blood from flowing. Now, those bone fragments act like a claymore mine to the vitals, and I expect that deer didn't make it far, but as far as a blood trail goes, its usually spartan. Quartering to is a tough shot, and thats just all there is to it.

I had a very similar situation last week. I took a nice doe with a muzzleloader at 20 yards. 300gr bullet, smashed the onside shoulder right at the upper joint and lodged about an inch starboard side of the anus, right up againest the hide. Found it at the skinning pole first thing. Didn't really tear up the ham thank God, and totally missed the loins. Lungs, liver... totally destroyed. Deer made it 30 yards. I looked for two hours for that deer after dark. Found hair in the spot where i shot it... and one splash a blood right near where it went down for good. Tracked its steps in the field dirt from where I finally tripped on it back to where I'd shot it at. 30 yards total... and not a touch of blood anywhere along its path. Sometimes it happens that way.

You're issue with a lacking blood trail is, in my opinion, not a bullet issue at all. But a bullet placement issue. Thats not an attack at all, your shooting is no doubt just splended, and surely effective. But you have to hit a deer in a spot thats going to produce a blood trail. Doesn't matter what you shoot him with really. Sciroccos are as good a bullet as any, and if your gun shoots them well, don't switch. Partitions are good as well, but I doubt if your results would have been any different with any bullet short of a solid.

Best of luck, and let us know if you found those bullets when you dressed the deer. That will reveal even more about what happened.