Thread: 7mm 150 ELD X in 7mm 08

yip use the ADI data for 154Gr I posted above and make the OAL 1mm (40thou) shorter than your mag length. Before I got an extended magazine for my Rem700 I could still just get 45gr in but it was a compressed charge and was starting to show pressure signs in my rifle. Also don't get hung up on speed with these the BC is so high they hold the speed well and even at 2600fps they hold enough speed and energy to 550yds for deer.
How far are you wanting to shoot?
BTW I am using 2208 as I load for a 243 as well so am economizing on powder, Win760/H414 would be a good choice too as well as RL-17, but I like the low temp sensitivity of ADI powder as well as being way easier to get than RL-17

Originally Posted by winaa

yip use the ADI data for 154Gr I posted above and make the OAL 1mm (40thou) shorter than your mag length. Before I got an extended magazine for my Rem700 I could still just get 45gr in but it was a compressed charge and was starting to show pressure signs in my rifle. Also don't get hung up on speed with these the BC is so high they hold the speed well and even at 2600fps they hold enough speed and energy to 550yds for deer.
How far are you wanting to shoot?
BTW I am using 2208 as I load for a 243 as well so am economizing on powder, Win760/H414 would be a good choice too as well as RL-17, but I like the low temp sensitivity of ADI powder as well as being way easier to get than RL-17

Dam typo meant to be 2209

Winaa, thanks for your input.

I will measure the mag length tonight and determine what sort of OAL I can achieve and what case capacity this equates to. With a little luck ill be able to get 44-45 grains it it without having a compressed load.

The point of this exercise is to replicate the performance of the factory round which shoots well to 500yards which is as far as I’m likely to shoot game with this rifle. I’ve assumed a velocity of 2650fps for this as it matches my drops perfectly. Although I’m not too worried about speed it’s always nice to have the extra fps if possible.

I have some surplus 2209 on hand hence the reason of wanting to use it but if a different powder would be better then I’d probably just go this route from the beginning.

The point of this exercise is to replicate the performance of the factory round which shoots well to 500yards which is as far as I’m likely to shoot game with this rifle. I’ve assumed a velocity of 2650fps for this as it matches my drops perfectly. Although I’m not too worried about speed it’s always nice to have the extra fps if possible.

I think you would get that easy with 2209....I was getting 2620 with 162 Amax/2209 loaded to fit in a poxy short A-Bolt mag

Some more reading for you https://www.24hourcampfire.com/ubbth...8#Post11691106 Post #11691106 is interesting but pretty sure you can't get that powder in NZ

People use H414 because the supply of R17 is so erratic.

I haven't started my load work up for it yet but I am planning on 150ELDX in the 7mm08, using 2209 out of a factory savage. I am basing mine off the load data ADI lists for the 154gr (in the same table as the ELDX in the Hornady book). I will be doing a ladder test from 42.5gr to 46.0gr (or pressure limit), hoping to find a node around 45-46gr.

Some results.

44.5g load was slightly compressed when loading them to 2.8” to fit the Tikka mag.

At 45g I got a faint ejector mark on 1 of the cases the brass but no other signs of pressure.

Originally Posted by Hayden C

Some results.

44.5g load was slightly compressed when loading them to 2.8” to fit the Tikka mag.

At 45g I got a faint ejector mark on 1 of the cases the brass but no other signs of pressure.

Attachment 91978

2209 or H414?

Originally Posted by Hayden C

Some results.

44.5g load was slightly compressed when loading them to 2.8” to fit the Tikka mag.

At 45g I got a faint ejector mark on 1 of the cases the brass but no other signs of pressure.

Attachment 91978

Nice.

2209 not sure what sort of FPS im getting.

44.5 looks like a keeper.

Originally Posted by Max Headroom

44.5 looks like a keeper.

Still room for improvement

I wish my 280AI would shoot like that!

That's pretty good. I tried 145 ELDX in my 270 wsm over the weekend, and they seem to be a very accurate bullet (3130fps). I will be keen to see how they perform on deer for you (and me).

My first three shots with eldx with an untried load and length:

Originally Posted by Tahr

That's pretty good. I tried 145 ELDX in my 270 wsm over the weekend, and they seem to be a very accurate bullet (3130fps). I will be keen to see how they perform on deer for you (and me).

My first three shots with eldx with an untried load and length:

Attachment 91984

Nice!

Your results replicate my limited experience loading with the ELDx. They just seem to shoot with little mucking around!

I haven’t shot anything with this rifle yet but I have switched to 162 ELDx in my 280AI after running out of the old AMAX. I’ve only shot 2 red stags, a young Tahr and a decent buck Chamois with the ELDx so hardly enough to draw any conclusions regarding performance another than to say they have worked. I think the moderate velocity (only 2850fps) helps. I used to use an accubond (first round in the mag) for shots under 200m but ran out of them and haven’t bothered loading anymore so I’ve been using the ELDx for the closer shots as well. It will be interesting to see how the 150’s go at what I assume will be around the 2650ish fps mark.