marginal stability

[Beluebow]

Go shoot what you have and have confidence. It will be fine at the higher elevation as long as it shoots good at home.

I've had excellent results going from 500' (SG1.4) to 6900' (SG1.7).

 

[twister]

going to switch to the 108 EOL since its not much different but is stable at all altitudes/pressures.

 

[montana west]

ok I have loaded ammo at 200'and at 5000 they shoot high about 2" at 100 m and the handloads are very hot up here... you need to drop your powder charges 1.5 grains so you will not have flattened primers.. from 200 to 6000 elevation.. I am sure that is why the 416 rigby is loaded at 40 000 cup instead of 50 000 cups because in africa it is high elevation.. I think that elevation has more effect than tempature.. another thing if it is light rain you velocity will go up as much as 75 fps..

 

[Michael Eichele]

There's nothing wrong with 1.39 sg. Perfect? No. Adequate? More than. Going to 6000' isn't going to make things worse. It will make it more optimum. If your load shoots great at 200' at your max distance, why would you change it? If it works it works. Sometimes we overthink everything.

 

[DMP25-06]

Lapua SRP brass
H4350
Fed GM205M
105 Hybrid

I run this combo in my 6CM. From a 24" barrel, I get 3101 w. 42.0gr, and it is crazy accurate, and deadly. Took my NM pronghorn last year at 450-460 yards. Dropped at the shot and never twitched.

Entrance (broke front leg going in)
View attachment 195888

Bullet was just under skin, blew all the hair off the hide, and ALMOST exited, left a nasty hicky

View attachment 195891
View attachment 195892
View attachment 195893

Mean entrance hole into the body cavity after taking out the front leg

View attachment 195894
View attachment 195895
View attachment 195896

GREAT Antelope !!!!
What did he score ? I apologize for this question being off topic , but WOW !

DMP25-06

 

[lancetkenyon]

GREAT Antelope !!!!
What did he score ? I apologize for this question being off topic , but WOW !

DMP25-06

82 3/8"

 

[DMP25-06]

82 3/8"

I am not certain , but does 82" make the Boone & Crockett Record Book ?
Either way , really Great Antelope .
CONGRATULATIONS !!!

 

[Beluebow]

ok I have loaded ammo at 200'and at 5000 they shoot high about 2" at 100 m and the handloads are very hot up here... you need to drop your powder charges 1.5 grains so you will not have flattened primers.. from 200 to 6000 elevation.. I am sure that is why the 416 rigby is loaded at 40 000 cup instead of 50 000 cups because in africa it is high elevation.. I think that elevation has more effect than tempature.. another thing if it is light rain you velocity will go up as much as 75 fps..

Your experience has been nothing like mine going from lower elevation to higher. Except the change of poi.

Is it possible the load was to hot before you left home?

 

[lancetkenyon]

I am not certain , but does 82" make the Boone & Crockett Record Book ?
Either way , really Great Antelope .
CONGRATULATIONS !!!

80" makes book, 82" makes all-time.
We had a great year in 2019. My 17 year old daughter took a 196 2/8" mule deer buck.

 

[DMP25-06]

80" makes book, 82" makes all-time.
We had a great year in 2019. My 17 year old daughter took a 196 2/8" mule deer buck.

I was thinking 82" net made all-time B & C Book .
Congratulations to your daughter also . Please post a photo of her Mule Deer .
If I remember correctly , 190" net Typical makes All-Time B & C book for Mule Deer .

 

[lancetkenyon]

I was thinking 82" net made all-time B & C Book .
Congratulations to your daughter also . Please post a photo of her Mule Deer .
If I remember correctly , 190" net Typical makes All-Time B & C book for Mule Deer .

22" 6.5 SLR pushing a 130 OTM @ 2901fps, 454 yards.

 

[montana west]

Your experience has been nothing like mine going from lower elevation to higher. Except the change of poi.

Is it possible the load was to hot before you left home?

well it could be but, my neighbor came from the same 200' and he has the same results for example in a wildcat 35gibbs with 225 serrea GK I was useing 63 gr R-15 @2850 at my new elevation I use 61 gr R-15 with 225 serria GK and get 2850. now it could be that our humidity is higher here than where you are.

 

[HARPERC]

If you have them and they work where you're at shoot them. If not, so many good bullets pick one that has higher stability, and run with it.

 

[twister]

well it could be but, my neighbor came from the same 200' and he has the same results for example in a wildcat 35gibbs with 225 serrea GK I was useing 63 gr R-15 @2850 at my new elevation I use 61 gr R-15 with 225 serria GK and get 2850. now it could be that our humidity is higher here than where you are.

i do not have pressure issues when changing altitude. 6 different guns just POI shift.