Thread: 223 on deer

Originally Posted by 7mmsaum

Time to put some effort into these

G1 bc of .485

G7 bc of .244

Velocity will be interesting in a Sako with its long throat and spacious magazine

Attachment 247979

They are about the only pill I couldn't get to shoot in my Tikka 1.8 twist

Originally Posted by 7mm Rem Mag

They are about the only pill I couldn't get to shoot in my Tikka 1.8 twist

Same

Originally Posted by 7mm Rem Mag

They are about the only pill I couldn't get to shoot in my Tikka 1.8 twist

Same for me be interesting to see how they go in the SAKO

Sent from my CPH2145 using Tapatalk

Originally Posted by 7mm Rem Mag

They are about the only pill I couldn't get to shoot in my Tikka 1.8 twist

I initially had them shoot great in my 1:8 tikka @2920fps. But that was in hot weather and only one batch of pills which measured 0.020" shorter than the next batch lot I got. It was erratic as after the temperatures cooled off.
The 80gr are too long to stabilise in 1:8twist at that speed or less. If you change temp and barometric pressure in your ballistic app you can see the stability calc go up and down accordingly.
I ground 80% of the red tips off some as a test and they shot good again but their BC was degraded down to about G1 0.290!

Don't think you'll be disappointed, Bryan litz lists the G1 BC as .505

Cool as thanks

Hahahaha

Thought that would get a response

Going to single load

COL (cartridge overall length) for my Sako is 2.470 inches at a 5 thou jump

Originally Posted by 7mmsaum

Hahahaha

Thought that would get a response

Going to single load

COL (cartridge overall length) for my Sako is 2.470 inches at a 5 thou jump

Better than a T3

No trouble for me stabilizing in 1:8 at 2786fps.

Originally Posted by gimp

No trouble for me stabilizing in 1:8 at 2786fps.

Is your barrel a cut rifled.
I was told I hammer forged button rifle needs to be 1-7 to stabilize but a cut 1-8

Sent from my CPH2145 using Tapatalk

Originally Posted by 25/08 IMP

Is your barrel a cut rifled.
I was told I hammer forged button rifle needs to be 1-7 to stabilize but a cut 1-8

Sent from my CPH2145 using Tapatalk

Yes but I'm not sure why it would be different

Originally Posted by gimp

Yes but I'm not sure why it would be different

I'm not sure either just what a guy with plenty of NRA target shooting and reloading knowledge told me.

Sent from my CPH2145 using Tapatalk

Originally Posted by gimp

Yes but I'm not sure why it would be different

I don't think you use a Tikka @gimp ?

I think it may be a Tikka thing, 77gr TMK's great groups, 73gr ELDM's also group fine but the 80gr ELDM's not good

Originally Posted by 7mm Rem Mag

I don't think you use a Tikka @gimp ?

I think it may be a Tikka thing, 77gr TMK's great groups, 73gr ELDM's also group fine but the 80gr ELDM's not good

Oh I don't mean brand specific, rather I don't see why a button rifled 1:8 would be any different for stability than a cut rifled 1:8

Originally Posted by 7mm Rem Mag

I don't think you use a Tikka @gimp ?

I think it may be a Tikka thing, 77gr TMK's great groups, 73gr ELDM's also group fine but the 80gr ELDM's not good

80gr ELD-M run great in my 1-8” Tikka. Nothing fancy, but still produces 1” ten shot groups at 100.