Any suggestion on the best stopping power round
For deer in factory ammo?

.243 that is

just make sure the bullet is designed for deer, not varmints.

100 gr remington Corelokt... Never fails.

I just started using .243..been using 7mag for years
Anyway I shot a big doe with the .243
She was facing me 75 yards
Only shot I had was a chest shot
It went in left side of chest
And stopped in the ribcage on left side
Went 50 yards and crashed
The round was Winchester 85 gr silvertip

hornady superformance sst is a great round also

I always use Federal Premium Vital Shock with 100gr Sierra Gameking BTSP on mine with all deer falling on their tracks and of course good shot placement. As a meat hunter this bullet will leaves a nice clean little hole and does not bruise the meat too much.

Im going to try Barns TSX or Hornady GMX copper bullets to see how they work. I feel sure they will work better.

Any round designed for deer will work well for. .. deer.

.243 Win is a great round. It has plenty of power. Deer aren't that hard to kill. Just get them in the boiler room, and they'll die quickly.

80 gr ttsx

I prefer the Winchester Power Points but pretty much the same, cheap and reliable. I have never lost a deer, my biggest is an 8-point.

what BO BO said.

I use the 90gr Nosler Ballistic Tip. 10 less grains allow a little more velocity. Works great!

Yep

Federal 100 grain Nosler Partitions.

That's what my daughter used on hogs and deer before 7mm-08. Never tried any others.

X12

This is true...

I really like the TSX bullet Barnes puts out. I tried the Barnes ammo in their 80 TTSX but,for me the Federal TSX 85 gr groups the best.

I use 100gr in reloads. A hunting partner uses factory 85gr.

Haven't had and deer walk off after being hit by them.

Besides reliable performance, I like knowing that I can walk into just about any hardware or sporting goods store and find my ammo. So I use Remington 100 gr. Corelokt.

Winchester 85 gr silvertip seem to work good to me

95 gr sst