I would think that you'd get about the same performance with a 95 gr BST in 243 as you would a 130 gr BST in 270.

The 100 gr 243 and 130 gr 270 have the same sectional density, and nearly identical velocity. With identical bullet design, they should do about the same to a deer.

Addressing the 5 grain difference when moving down to 95 gr BST: Since ballistic tips are so explosive, and a 270 has a larger diameter, it should open up to a larger diameter than the 243. Therefore, an expanded 130 gr 270 would have less sectional density than an expanded 100 gr 243. Because of this, I'd think that expanded 95s and 130s would have about the same sectional density.

All in all, you shouldn't notice a difference between the two on whitetail. Good luck...you should have a very dead deer.

Do yourself a huge favor and switch to Hornady Interbonds. I've shot deer with the Interlock(your basic lead bullet), the SST(pretty much Hornady's Ballistic Tip), and the Interbond. The interbond is pretty much a blend of the strength of the Interlock with the accuracy and aerodynamics of a polymer tip. the Hornady Interbond is probably one of the best overall bullets on the market. Read one of the last issues of Field and Stream ,they had a very good in depth look at the major bullets on the market today.This is the article paco is talking about.

I've had the interbond go through through both shoulders, so i really can't tell you how much weight it retained. i've had pass throughs with interbonds on every shot. The one time i found an Interlock was when it almost went completely through a deer lengthwise and i found it stuck under the hide. I didn't think the SST's that i recovered from deer and the ground behind my targets retained weight well enough. Use those for smaller deer, pronghorn, or varmints. I don't know if they make the interbond for .243 or not, but if they don't, I'd go to an interlock or something stronger than a ballistic tip. Oh, and about 1" groups, I'll say this: For 95% of hunters, 1" groups don't mean crap. As long as you can for sure put the bullet in the chest area at the ranges you'll be shooting at, you're fine. For some reason(and they did a study on it in F&S), the .270 Win(my caliber of choice), just doesn't group wortha damn. It won't make sub-MOA. i really don't spend time tightening groups. I'd be more concerned about trying to make shots in the wild that aren't off a bench, like moving shots and shots in cover.

slayer

AGREE!

I consider them indespensible during deer season. I shoot an -06 and shoot the 150's from the stand on the edge of a big field or the 165's/168's all other times. The 40+ deer I haveshot with these bullets have probably moved a COMBINED distance of 25 yards. They just usually fall over in a heap - dead as a doornail. Headshots, neckshots, lungers, heart - no matter....just flop and one or two kicks of the legs. To be honest I have also loaded Speer, Sierra and Hornady not to mention Nosler partitions and have had good performance - but a trip to Wyoming in 1991 for muleys got me into long range thinking and I have never looked back I am interested in the Accu-bonds from Nosler but have never shot them....considering how devastating the ballistic tips are I really see no resaon.

I own a 270 WSM (win M70 Super shadow. I have killed 3 deer an 1 elk with it. all 3 deer were shot with 130gr BST's. The Elk was shot with 140gr Failsafe. In the case of the Deers (2 Whitetail 1 muley) they dropped like sacks of potatoes. I mean not so much as a step. The shots were between 75 and 100yards in all cases. The bullet was very effective, very little meat loss. Also, I have not found a more accurate round in my 270WSM than the 130gr. BST's. Some guns have a thing about liking a particular bullet & load. The 270 wsm likes them. Not so much the 140 failsafes. All the animals I shot at are dead though. But at the range, the 140 is not nearly as accuarate

One other thing that I forgot to post on here about the BTs is that I LOVED the flat shooting. I would zero my rifle in at 50 yards and out to 200, i wouldn't have to adjust. I've never shot another bullet out of my rifle that done this. I wonder why this certian bullet type done this?

The comment about group shooting, I can't remember if its in this post or another.-- Well, I am different on that. I want to know EXCATLY where my bullet is going to go when I squeeze it off. I don't want to play a guessing game of aim an inch high or an inch to the left....or squeeze it off on the X and it hit the Y.

I take pride in my scope setting. If I miss, its not b/c of my scope. Its me. Unless it worked lose or I dropped it of course.

It means crap, and alot more. If a rifle is capable of 1" groups or less, then that's what it should be sighted in to do. There are too many other variables introduced in the woods not to go out with your best set-up. One inch off at 100 yards on the range can be a miss at 125-150 yards in the woods. One must consider rain, wind, elevation variances, changing sunlight, temperature etc, etc.
You owe it the animal to get your best group!