Rather than off-tracking a zombie thread, I started you your own thread.
Please spend some time reviewing the rules and the stickies.

To your question:
Guns are like people, everyone has it's preferences. Some barrels just refuse to shoot bullet xyz as accurately as your might want. Whereas someone else with "the same" rifle may have no problem making that bullet work for them.
There are variations in everything, barrels, chambers, brass, powder, bullets.

What bullet you should use, depends on what you're hunting, and what your barrel likes.

Cheers

 

The practical way to figure is to sight in with one load (at 50 or 100yds) and then use that group, measured, to compare additional groups. At this point, comparing loads, it does not matter where other loads land on the target, only how small the groups are.

I hope that this makes sense.

 

it does not matter where other loads land on the target, only how small the groups are.

Exactly, you'll save a lot time, ammo, and frustration, by narrowing down the loads by finding the one that shoots the best group, then adjust your scope/sights to your desired Zero.

I get acceptable accuracy with many loads with 130-150 gr bullets from a Win. M70.

I even handloaded 170 RN bullets that shot well enough, but they were at, more of a 30-30 level of terminal performance.

Good luck, have fun, be safe.

 

Have hunted with (and reloaded for) a .270 for about 45 years. The recommendations that preceded me here are right on. Assuming you're hunting whitetails or similar, a 130 gr bullet will do just fine. I've taken a lot of deer with Hornady 130 gr Interlock bullets. Have also loaded up Nosler 150 gr Partition loads for elk.
Since you're just getting started, any brand of ammunition with 130 gr bullets will work very well for you.
Spend time with your new rifle, learn what ammunition it likes, zero in your scope, enjoy it !
Best wishes....

 

Welcome to the Forum. These folks have given good advice. A lot also depends on your abilities and shooting experience. The .270 Winchester is a great cartridge. All the best...
Gil

 

The 130gr bullets are usually the sweet spot for 270s. My dad bought me a Ruger 77 in 270 when they 1st came out. Put a Leupold 6x on it and sighted in with Sierra 130s & IMR- 4350 and there it stayed for several years. Shot several deer with it but that was about all the use I got out of it. In late 70s I moved into rural area where I could shoot daily. I liked the Ruger 77 so to get more shooting out of it Switched to
110 grain Speer bullet. Shot a truck load of Groundhogs with it and used it on deer damage permits. We shot deer from rested positions at ranges around 100yds. Since we were eating deer we head shot them.
Accuracy was varmit rifle grade.
over the years have had several 270s which all did well with 130 gr bullets. Only had two that refused to shoot no matter what. A Winchester M70 from late 60s and a Savage 110 from about same period. I also had Rem 742 & 760 that were lousy shooters. The bigger the bullet and slower the velocity the better they shot. This ain’t saying much because at there best they would only do about 3” at 100yds.

 

about 3” at 100yds.

That's acceptable at 100 yards or less, and more than adequate at 25-50 yards that are normal woods distances here.
It is nice to get better accuracy from the rifle to offset operator error though.

 

I averaged 3/4 - 1" groups at 100 yds with both Ruger 77's (one 1st generation, and a MKII), with my reloads ;
Hornady 130 gr Interlock bullet
H4831SC powder, 57.5 gr
(2900 fps or so, velocity)
WLR primers.
.....very accurate for my rifles. This load also shot very accurate in a Rem 7600 pump .270 as well.

 

You averaged .75” to 1” groups with a Rem 7600? Are you shooting 1 shot groups?

 

The Rem would shoot the same small group. As stated - the cartridges used were/are custom reloads that I load myself.

 

My 1st deer rifle at 12yr old was a Rem #8 in 35cal. All the adults had 742 or 760s. Took me 2 years to save the scratch to buy a 742, 30/06. My first brand new CF rifle. The #8 would shoot rings around it at 100yds. I’ve got shotguns that will come close to 3” at 100yds. So to me 3” at 100 is not acceptable.
The Rem 742-7400 & 760-7600 series use to be what everyone wanted. Now in my area it’s hard to sell or trade one. Besides accuracy issue they aren’t known for dependability or durability. I have come to the conclusion that if an AR-15 is considered an assault rifle then a Rem 742 has to be an insult rifle.
Yea, they may be ok for a once a year stump hunter that is shooting 50yds. When you got major bucks and travel on a trip your want a rifle that is accurate and dependable.

 

1973 Ruger #1 in 270 Win

130gr Nosler BT and IMR 4320 at 100 yards 4 shots

140gr Hornady STT and IMR4350 with '06 reformed to 270 brass at 100 yards/ 5 shots

my dad (RIP) had a Rem m760 in 30-06 that can do 3/4 - 1" group at 100 yards (5 shots/ bench) with 180gr Remington RN factory loads. my grandfather had a Rem m760 in '06 that can 1 - 1 1/2" group with the same kind of ammo. i had a Rem m760 in 308 Win that used 150gr Hornady RN and 170gr Hornady FP with some kinda of powder (i forget) and it was sub minute too.

MRD, i have sat on few stumps in my day. my first rifle is a 1972 Win m94 in 30-30. i killed alot of deer with it. then i sent her out to JES Reboring and he did a wonderful job in 35/30-30.

not bad for a PA hunter.