Gmx on game performance
- Thread starter brybenn
- Start date
I use 150gr in .300winmag and they are lasers. Always pass through so no recovered bullets BUT every animal dropped on the spot. Nothing moved further than 10 yards. 2 moose, 2 black bear, 1 wolf. Big enough exit holes to know the bullet opened up and performed correctly.
DiabeticKripple
CGN Regular
- Location
- Red Deer, Alberta
139gr GMX from 7mm Rem Mag at like 15yds so muzzle velocity (3190fps) basically. Hit the front shoulder of a whitetail on the way in, stuck in the hide on the offside. Ran about 30yds and piled up.
I have also shot a few does and an elk at 250yds and it has zipped right through and killed very quickly.
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I got a good load going for 110gr gmx at 3550fps from my 300wm. Everyone praises the 257wby and i know that speed kills with my 2506. Ill keep testing the bullets in various mediums but im thinking it should be a fine deer combo out to 300 yards
- Location
- sudbury, ontario
Holy Hanna 3550!...your going to vaporize what ever you hit ......expect a lot of black/dark red ...because of the speed I know I did the same !,with a different calibre ......heart ..lungs were nothing but black ..red jello !,!
I kid you not .....a clean super quick humane kill.
Equals meat in the freezer
You should try long range with it ......you never know at the 500 plus meter distance.or longer....a buck or moose or elk of a life time
Might come out
Anyways cheers and good for you with the success on load development
I kid you not .....a clean super quick humane kill.
Equals meat in the freezer
You should try long range with it ......you never know at the 500 plus meter distance.or longer....a buck or moose or elk of a life time
Might come out
Anyways cheers and good for you with the success on load development
prairie lover
CGN Regular
- Location
- southern MB
139 7mm GMX out of 7mm STW, limping along at 3500 fps MV.
details please?
I have tried the mono bullets and came back to good bullets like the accubond.
139gr GMX from 7mm Rem Mag at like 15yds so muzzle velocity (3190fps) basically. Hit the front shoulder of a whitetail on the way in, stuck in the hide on the offside. Ran about 30yds and piled up.
I have also shot a few does and an elk at 250yds and it has zipped right through and killed very quickly.
If you are referring to the superformance junk from hornady, and are hunting in fall temperatures, it was most certainly going slower than what the box says. I chronographed that ammo in the summer and at 0C and it was going 120fps slower than summer temps.
To the OP, I shot two whitetails with the 139gmx and recovered one with an impact speed of around 2600fps. It did not expand very wide and that was after hitting a lot of bones. I would use them no farther that whatever range you hit a verified 2500fps or so.
That's a very good move on your part.
These group the best ive ever shot in this rifle. It started just as an experiment to see if theyd hold together and to see if i could actually get 3900 fps with some powders. I started with h4895 and have got 3688fps 15' in front of the muzzle.
If i deer hunt in a centerfire zone i have other rifles id use over my 300. I was just interested in seeing if anyone had any experience with light fast monos. Ive seen way to many barnes tsx and ttsx shed all petals and poke a small hole and not exit. Some long recoveries on bears lung shot with 180gr ttsx bullets. I started this just to see if i could get them to hold together at stellar speeds. Im going to shoot thru deer shoulders and into water jugs to see how they behave at 30 yards and 100 yards. Im not sold of them yet but if they hold together and hit at 3300+ fps they should knock the piss out of a deer. I know my 2506 does with a 117gr at 3100mv out to 300 yards with interlocks.
If i deer hunt in a centerfire zone i have other rifles id use over my 300. I was just interested in seeing if anyone had any experience with light fast monos. Ive seen way to many barnes tsx and ttsx shed all petals and poke a small hole and not exit. Some long recoveries on bears lung shot with 180gr ttsx bullets. I started this just to see if i could get them to hold together at stellar speeds. Im going to shoot thru deer shoulders and into water jugs to see how they behave at 30 yards and 100 yards. Im not sold of them yet but if they hold together and hit at 3300+ fps they should knock the piss out of a deer. I know my 2506 does with a 117gr at 3100mv out to 300 yards with interlocks.
139gr GMX from 7mm Rem Mag at like 15yds so muzzle velocity (3190fps) basically. Hit the front shoulder of a whitetail on the way in, stuck in the hide on the offside. Ran about 30yds and piled up.
I have also shot a few does and an elk at 250yds and it has zipped right through and killed very quickly.
That is pretty much how these 110gr 308 gmx look after impacting sand at 40 yards with mv under 3500fps. Above that they where shedding copper alloy. But thats sand
139 7mm GMX out of 7mm STW, limping along at 3500 fps MV.
What range was the impact ?
