“Does yours prefer 130 or 150 grain bullets?”You sure know how to ask a tough question. I have been Handloading for my Remington 700 chambered for the 270 Winchester cartridge since 1979. It seems to like just about any bullet weight, I have loaded the Sierra 110-grain, Hornady 130 grain Sp, 140-grain BT, and 150-grain Sp. It also likes Nosler 150-grain Solid Base, and 150-grain Remington CL.
It likes factory 150-grain WWPP, and I have found them effective on deer. My favorite load uses H4831 and the 150-grain Hornady Spire Pt. On this buck the bullet hit behind the shoulder on the side shown and exited out the off shoulder. I could see the hide on the deer ripple away from the point of impact when the bullet struck.


We are currently suffering from many days of liquid sunshine. I am waiting for a very sunny day to make a trip and test some loads in the 700 and get some Chrony data. I purchased a few hundred blems from Mid South, I have no doubt they are Hornady 130-grain SST. I have done some testing in the Savage 110CL and I am now setup to test in the 700. I am using H4831 powder. I am not seriously considering using a 130-grain bullet for deer; I did that for many years. If I was to return to the 130-grain bullet I would use a bonded bullet or the Nosler Partition.
Last year I picked up a sleeve of 150-grain Power Points. I have loaded some for Chrony and accuracy testing. Middle brother loads for a 270 Winchester, and a 270 Ackley Improved, he was so impressed with the 150-grain WWPP that a few years back he purchased a 1000 of them in bulk. The guy is not hurting for bullets because he also has on hand a number of preimum bullets because they were to be bought.
The best group I have shot with the 700 was with the old style 140-grain Winchester Silvertip using WMR (Winchester Magnum Rifle Powder).
I have three rifles in 270 Winchester, by choice and past performance I loaded the Model 700 and 760 with 150-grain bullets, and the Savage 110CL with 140-grain Hornady or (old style) Silvertip 140-grains. All three rifles give good accuracy; the selection is based on performance. The 140-grain and 150-grain bullets provide deeper penetrations, and exit wounds more often then 130-grain bullets. The 140-grain bullet generates more energy at 400 yards and shoots flatter than most 130-grain loads.
I have a good stockpile of bullets for the 270 Winchester, but the thousand 150-grain Hornady Spire Point represents my favorite deer bullet.