What powder are you using? I could not get good velocity and accuracy with 130 Accubonds out of my 264 Win mag until I went to Retumbo. I have a 27 3/4" Shilen barrel 9 twist. 66.5 grs Retumbo, WW case or WW 7mm Rem mag case reformed to 264, CCI 250 primer, 130 AB 10 thousands off the lands. 3350 fps average. So far 5 WT deer from 80 to 250 yards BANG FLOP. Recovered one bullet shot length wise from front to back at 111 yards. Bullet was found in ham with text book mushroom weight was 87 grs. I would be afraid of sever bullet blow up at close range with the A-max or the ballistic tip at 264 Win mag velocity. Those one piece 120 gr bullets might be your ticket. But the 130 AB at 3065 fps ain't no slouch and would pack more authority way out there than lighter bullets.
My load with the 130 accubond is 64 grains of Retumbo, WLRM, Nosler brass, bullets seated 0.010 off the lands. I was hoping to get the 130 grain bullet over 3200 with accuracy but 66.0 grains of Retumbo in my rifle started to give a sticky bolt. Velocity was around 3180 and the group was crap. When I ran some numbers on the G7 program, the 120 bt's at 3300 would reach 1800 fps at around 850 yards (if I remember correctly). The accubond at 3065 15' feet from the muzzle will get down to 1800 fps at around 700. And, at 550 yards the 120 was roughly one full minute flatter. The reason I use the 1800 fps is that's what Nosler recomends as minimum velocity. I'm okay with the accubond groups in my gun just wish I could do it a couple hundred fps faster - a higher bc wouldn't hurt either.
I've nothing to contribute, posting just to follow conversation. I have much the same question looking for the bullet to use in a 6.5/284 short magazine. Intended target wolf/coyote. The 120 Nosler ballistic tip I have a pretty good idea what to expect, the 123 A-max I've read what Hornady has to say, but looking for review from the field. So just looking over your shoulder.
I know a few guys that have harvested using A-max bullets but with other calibers. One feller harvested a Bull Elk at 900 yds using a 162g A-max in a 7mm STW, one shot kill, double lunged him...
Another shot a Mule buck and had to shoot again due to bullet failure, he was shooting a .300 Win Mag. So I'm not sure which is the best way to go here.
I've harvested big Muleys a using 168g Berger VLD out of my .30-06AI so I know that some match bullets are quite capable of working as hunting bullets, I've never thought to try A-max myself.
I am however using 129g Hornady SST and 129g Hornady Interbonds out of my 6.5-06 AI and pushing them to 3300FPS using 60g of RL-22. They also hapen to be very accurate out of this rifle. Their BC (G1) is identical at .485. These may shoot well out of your rifle as well.
The 123g A-Max is a .510 BC (which I can see why you are interested in it). It's also fairly new so I haven't heard anything as far as performance on game. Hornady won't give you anything as they condone the use of A-max bullets on game so we gotta wait for some one to actually use it out in the field. Maybe some one in Texas will load some up and shoot a couple hogs with them and let us know (hint, hint).
[QUOTE=Roe;548485]Shot about 40 deer with the 123gr Amax last year. Good bullet, everything dropped and can't say I was bothered with running deer.
Sounds good! If you have a minute to be more descriptive I'd appreciate it. Pretty consistent performance, or varied?. Pass throughs, or stay in the animal? Notice any differences with changes in terminal velocity? Any bullets you would compare too. Thanks for your input.