Remington 700 sendero. 300 win

[ohiohunter]

I'd do the ladder at minimum of 300yds, further would be better. You can increase charge 0.2-0.4gr roughly, its really up to you. The vld's may be finicky about seating depth, but the hybrids are far less sensitive. If you can, I'd get you're hands on some 215 bergers and run them anywhere between 15 and 40 thou off the lands.

 

[Bravo 4]

H1000 is rarely if ever the fastest powder but it's incredibly consistent or has been for me.

H1000 has been a good powder in my loadings of .300s and .338s, however the lot to lot variations have been big. Up to 100 fps in my bigger .338 Edge. I am not the only one to complain of this over the past several years. My recommendation with this powder is buy in bulk.

 

[Joefrazell]

Well I just bought some h1000 to try out with these 210 vld's. The retumbo did ok but only held about 1" at 100 yards. I haven't played with seating depth yet however so I may try to play with the seating depth with retumbo depending on how the h1000 goes. Im going to do a ladder test starting at 74 grains and going up to 77.6 gr. In .4 gr. Increments. I'll shoot them at 400 yards. Then I'll shoot for groups at 100 and 400 yrds.

 

[Joefrazell]

So I was able to get out tonight and do a ladder test. I was using h1000 with 210vld's and I loaded them just touching the lands. I shot 74, 74.5, 75, 75.5, 76, 76.5, 77 and 77.5gr. Loads. No pressure signs yet. Berger says max is 75.5gr. The distance was 320 yrds exactly. I'm thinking 76 gr. Which should get me around 2830 fps. Which should be just fine. I would like to know what you guys would take away from this test as its my first ladder test I've ever undergone. I feel it went very well and will have me shooting long range much quicker.

The inner of the target bullseye is 1.25" for refrence. I feel that this should shoot .5 - .75 moa without any problems.

 

[Joefrazell]

Anyone?

 

[Canhunter35]

Joe,

I'd say ur looking good at 76 gr. it seemed to create a node around 75.5,76,76.5, from what I'm seeing, I'd drop into the middle, gives u the greatest room for faster and slower shots staying in the node. Depending how fussy u are, I would next adjust your seating depths and shoot over a chrony, find where they group and have the lowest sd. Then I would repeat the procedure with that seating depth and 76.2gr and 75.8 gr, seeing if marginally tweaking the powder can lower ur sd more. Example, increasing my load on my 300wby by .5 grs cut my sd by over half while the group shot the same at a 100"
Vld's r finicky, you have to play withy the seating depth to optimize them. Get some eld-x and as long as you don't shove them in backwards you're good to go!

 

[Joefrazell]

Ok, thank you for the reply and yeah I need to get a chrono to fine tune things here. I've planned on playing with seating depth a bit but I wanna load up some in 76 gr just touching like this test was and do some 300 and 500 yrd testing in no wind and see if it hold moa.

 

[Canhunter35]

Even if there is wind Shoot a few extra times and you can measure the vertical spread to check your grouping/at 500 yds a wide velocity range will show up too. Which why it's difficult to figure out what's going wrong without a chrony but if it works then you're good to go.

 

[Canhunter35]

When you get 500 rounds through that barrel you'll notice an increase in accuracy, at least I always do on rem barrels

 

[Joefrazell]

Yeah it's definitely tighting up after the 100-150 rds. I've put through it. Good to know it may continue to tighten up though. Also, the first bullet I tried was the 208 eldx with h1000 and it didn't shoot too good. I also tried imr 7828 with them. They were very inconsistent for some reason. 3 shots touching all the way to 1.5" groups. They shoot lights out in my creedmoor though.

 

[Joefrazell]

I was able to make it to the range today to do some more load development. After doing a ladder test I've decided on 76gr. Of h1000 with 210gr. Vld aND wanted to test some seating depth. I tried just touching the lands, .030 off and .075 off. I didn't do any jamming as its a hunting rifle. I did 5 shot groups of all 3 loads. I would shoot 3 shots and allow barrel to cool for 5-10 min and then shoot the last 2 of the group.

Touching the lands was the only load that did good (in my opinion). It shot .853" at 100 yrds. .030 shot about 1.7" and .075 shot 1.2".

I've decided to just stick with this load and start having fun stretching it's legs on steel. Would you keep trying for a better load?

 

[mtntrapper1]

I was able to make it to the range today to do some more load development. After doing a ladder test I've decided on 76gr. Of h1000 with 210gr. Vld aND wanted to test some seating depth. I tried just touching the lands, .030 off and .075 off. I didn't do any jamming as its a hunting rifle. I did 5 shot groups of all 3 loads. I would shoot 3 shots and allow barrel to cool for 5-10 min and then shoot the last 2 of the group.

Touching the lands was the only load that did good (in my opinion). It shot .853" at 100 yrds. .030 shot about 1.7" and .075 shot 1.2".

I've decided to just stick with this load and start having fun stretching it's legs on steel. Would you keep trying for a better load?

 

[mtntrapper1]

Tagging in, I will be dev loads in A Sendero 300 Win soon w 215 VLD, and possibly new NOSLER RDF

 

[WildRose]

Joe,

I'd say ur looking good at 76 gr. it seemed to create a node around 75.5,76,76.5, from what I'm seeing, I'd drop into the middle, gives u the greatest room for faster and slower shots staying in the node. Depending how fussy u are, I would next adjust your seating depths and shoot over a chrony, find where they group and have the lowest sd. Then I would repeat the procedure with that seating depth and 76.2gr and 75.8 gr, seeing if marginally tweaking the powder can lower ur sd more. Example, increasing my load on my 300wby by .5 grs cut my sd by over half while the group shot the same at a 100"
Vld's r finicky, you have to play withy the seating depth to optimize them. Get some eld-x and as long as you don't shove them in backwards you're good to go!

You can save a lot of time and money by first establishing the best seating depth and then trying to fine tune the load.

The ideal seating depth isn't going to vary much if any with changes in velocity.