The load was exactly the same, 30.5 gr H4895 (some book show this as max) with a CCI 250M in FC cases (once fired). The only difference was the bullets, however they are both 170 grain. The listed velocity is 2138 fps (where do they get these seemingly precise #'s?). I did not chrono the loads because it didn't matter how fast they were going, only that theoretically they should be the same velocity or very close.
The range was 50 yards. The back-stop was 2 phone books around 3 inches thick, wet (from the hose) but not soaked. Behind the phone books was a cardboard box with assorted magazines, soft covered books, newspapes and other paper material. These were dry. Last was a 3/4" sheet of plywood.
I shot 7 NP's on the left half of the target area . I tried to recover bullets after 3 shots. The first 2 NP's went too low. The last one went off to the side and exited to parts unknown. So in the end I had 4 NP's to examine. Based on that, I only shot 4 Speers on the right half of the target area.
My initial thought was that the NP's would penetrate further. I also expected a mushroom shape but later realized I was thinking about the Swift A-Frame design where the front is bonded. So that was not a realistic expectation (that I quickly realized) just mixed my thoughts.
The conclusion in this very limited comparison was:
1) both bullets penetrated the same amount (no more than 30 pages variance between any of the recovered bullets), 2) the NP's all lost the entire front (the "partition" can be seen on the front with a little dimple in it, no lead), 3) the NP's were short (front is gone) and narrow (expanded part, if it did, came off), 4) the NP's weighed less than the Speers (less lead intact), 5) the Speers expanded quite a bit (looked like lead balls with the jacket inside), 6) You can pick the Speers jacket and lead apart with fingernails and separate them with some effort.
This was NOT what I expected. So while I had heard and was led to believe the Nosler Partition is the way to go for larger game if you were inclined to use the 30-30 on bear, moose, etc it seems the Nosler Partition may actually be the better bullet for deer sized game! A deer is softer than my test material so either bullet at 50 yds would likely have exited a deer. The NP may make a bigger mess inside due to the front breaking up and shearing off. On the other hand, maybe the speer would expand to a much larger size while staying together and actually be more effective. The whole thing is so "6 of one, half dozen of the other" that I'm just going to shoot the Speer's since they're half the price, and see how it goes when the deer or hogs show up. Any comments? (Like you guys are shy with your opinions

Speer on the Left, Nosler Partition on the Right

