Hornady's .264 123gr SST .510 ?

[1100 Remington Man]

Can this BC be correct at .510 for Hornady 6.5 123gr bullet ? What does (Grendel/LBC/Lapua) mean for this bullet ? Would the increase in BC be worth it for longer range shooting, Nosler 120gr. BC .458 vs Hornady 123gr .510 BC which is a increase of .052 or greater than 10% ? I have very good success on Mule Deer & Antelope with Nosler 120gr BT with complete passthrough on all big game to a Antelope at a little over 500 yds. I cannot use Berger Hunting Bullets since my Model 70 .264 Win Mag just has a Factory 24 inch barrel & does meet the twist requirement of there 6.5 hunting bullets. Has anyone used this Hornady Bullet 6.5 123gr on Big Game ?

 

[roninflag]

If it is working why change? You rifle should shoot 123 and 139 scenars (have not tried the 136) which is what i shoot. Also the 130 norma.

 

[1100 Remington Man]

Well on Nosler Balistic app the Hornady 123gr will hold 1000 FPE at sea level to 800 yds & the Nosler 120gr 1000 FPE to 675 yds, if the BC is correct for these bullets. I know with this barrel twist rate this is all I can expect.

 

[benchracer]

I know with this barrel twist rate this is all I can expect.

You don't know that until you actually shoot the heavier/longer/higher bc bullets in your rifle. It is commonly stated that a 9 twist won't stabilize the 140 VLD's. My 9 twist 6.5x55 not only stabilizes them, but shoots them VERY accurately. Ditto 140 AMAX's. I haven't had the opportunity to try them in my .264 Winchester Mag yet, but it shoots 140 Nosler Partitions just fine.

Keep in mind that the manufacturers routinely engage in CYA for the worst possible scenario, so take their stated twist recommendations with a large grain of salt.

Where the 123 AMAX is concerned, most of Hornady's bc's have been shown to be fairly accurate. The 123 AMAX was designed for use in the 6.5 Grendel, .264 Les Baer Carbine (basically a Grendel chamber cut specifically for the 123 class match bullets), and 6.5x47 Lapua, hence the Grendel/LBC/Lapua moniker.

 

[Jluck]

What does (Grendel/LBC/Lapua) mean for this bullet ?

This bullet was designed/optimized for the 6.5 Grendel. That is the sweet spot for heavy bullets that still fit the AR magwell.

 

[1100 Remington Man]

The bullets terminal velocity envelope is 1600 to 3300 fps and the bullet is extremely accurate. However, this bullet is designed to deliver all of its energy inside an animal and generally does not pass through an animal. These bullets have been extremely successful in this cartridge in mid-western and southern states where deer are shot at longer ranges. Quote from Hornady Tech.

This is the answer I received from Hornady. I my self am going to have to try these in my .264 Win Mag sounds perfect 1600 to 3300 FPS. Running Nosler Ballistic program 4500 elevation 30 degrees F, at 3300 FPS it is a flat shooter sighted in at 300 yds drop at 400 yds less than -8 inches 500 yds 20.7 inches that a flat shooting.

 

[65 GRENDEL]

I shoot the 123 gr Amax and the 123 gr SSTs out of my 6.5 Grendel 20" SS barrel. I've taken it out to 525 yards shooting paper plates.