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Load =

Fed once fired brass
Ramshot Magnum 80.0 grains
Fed 215M primer

Loaded per Berger instructions to find the sweet spot, and the best group was 1.5" at 100 yards.

OAL = 3.455, Velocity Avg 2,861 FPS, ES = 25 FPS 2.1" group

OAL = 3.495, Vel Avg 2,886 FPS, ES = 17 FPS 1.5" group

OAL = 3.535, Vel Avg = 2.868 FPS, ES = 27 FPS, 1.5" group

So I'm wondering, should I try a quicker powder? Something like 66.5 grains of H4350?

The rest was rock solid, and the rifle is a great shooter with 180 grain loads.

What am I missing?


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I don't think you're missing much, but this is what I know to be true. Berger's can sometimes be a difficult bullet to get to shoot well. RL22 is almost always a great move in a .300WM. I haven't loaded for a .300WM yet that didn't yield the best results after being pushed hard. If you don't have your heart set on the Berger, then try the 208 A-max. While it doesn't have the BC that the Berger does, it is an easier bullet to get to shoot well. Check your twist rate as well.

Hope this helps.

R.


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When trying any new bullet, you shouldn`t deal with only one powder. Owned a 300 WM for 30+ years.

Try some H-4350, H-4831, RL17, RL22, N550, N165.

When I experimented using the 155 gr thru the 210 VLDs in my 300 WSM, the OAL differences were in increments of 10/1000ths to find the sweet spots. Berger suggests a wider incremental disparity.

For hunting loads in all 30 cal VLD bullet weights, I started with the max COAL the magazine would allow and then backed off in 10/1000th increments until I found the best sweet spots for each bullet weight using the preferred powders.

H4350 and RL17 work really well in my 300 WSM using the VLDs and may do the same for your 300 Win too.


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They also recommend touching the lands. I've had better luck with H-1000 than any other powder out of my .300 WM.

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H 4831 RL22


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I start all load work with the bullet in the lands, trying for a square mark on the bullet.
Leaves only one direction to go after that.

Then I find the powder and load.

Then I play with seating.


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i use 72.5 re-22 lapua brass and either 9 1/2 m, wlrm, or cci250 primers. shoots 1/2 inch out of 3 different senderos

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What twist rate you shooting??

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Originally Posted by David_Walter
Load =

Fed once fired brass
Ramshot Magnum 80.0 grains
Fed 215M primer

Loaded per Berger instructions to find the sweet spot, and the best group was 1.5" at 100 yards.

OAL = 3.455, Velocity Avg 2,861 FPS, ES = 25 FPS 2.1" group

OAL = 3.495, Vel Avg 2,886 FPS, ES = 17 FPS 1.5" group

OAL = 3.535, Vel Avg = 2.868 FPS, ES = 27 FPS, 1.5" group

So I'm wondering, should I try a quicker powder? Something like 66.5 grains of H4350?

The rest was rock solid, and the rifle is a great shooter with 180 grain loads.

What am I missing?


I tried to help you out with this before but you listened to others and paid no attention to my post obviously. will try 1 more time
RL22 works great with 165gr-180gr bullets as does Ramshot Magnum but with the Berger 210gr VLD I tried many powders in several different rifles of 300WM chambering and THE powder for this combo is H1000.
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btw try H4350 if you must, but you will find the SD so high that even if it shoots good at 100 yards you wont hit much beyond 600yds.(defeats the purpose of using a high B.C.bullet)

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How did you find RL22 with the 208's? I've had great results with it, and 200's, as well as the 208 A-Max.

Thanks.

R.


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Originally Posted by Rman
How did you find RL22 with the 208's? I've had great results with it, and 200's, as well as the 208 A-Max.

Thanks.

R.


I shot RL22 alot and it shot good groups at 100yds with the 208A-Max and 210gr Berger but the ES and SD were too high for long range shooting, the only other powder that shot close to the numbers of H1000 was RL25.
Shooting the gong at 1000yds the Berger 210gr VLD with H1000 is by far the best combo I have found in several 300WM's.
The 208gr A-Max's and RL25 are a good second choice. RL22 has worked awesome with the 200gr Accubond but not the 208gr or 210gr.
Do you use a good chronograph when testing ????
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Originally Posted by boatanchor
Originally Posted by David_Walter
Load =

Fed once fired brass
Ramshot Magnum 80.0 grains
Fed 215M primer

Loaded per Berger instructions to find the sweet spot, and the best group was 1.5" at 100 yards.

OAL = 3.455, Velocity Avg 2,861 FPS, ES = 25 FPS 2.1" group

OAL = 3.495, Vel Avg 2,886 FPS, ES = 17 FPS 1.5" group

OAL = 3.535, Vel Avg = 2.868 FPS, ES = 27 FPS, 1.5" group

So I'm wondering, should I try a quicker powder? Something like 66.5 grains of H4350?

The rest was rock solid, and the rifle is a great shooter with 180 grain loads.

What am I missing?


I tried to help you out with this before but you listened to others and paid no attention to my post obviously. will try 1 more time
RL22 works great with 165gr-180gr bullets as does Ramshot Magnum but with the Berger 210gr VLD I tried many powders in several different rifles of 300WM chambering and THE powder for this combo is H1000.
B
btw try H4350 if you must, but you will find the SD so high that even if it shoots good at 100 yards you wont hit much beyond 600yds.(defeats the purpose of using a high B.C.bullet)


What load (grains?) should I start with? I'm shooting Fed brass, and I just ran out and got some H1000....

Last edited by David_Walter; 06/01/10.

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Originally Posted by boatanchor
Originally Posted by Rman
How did you find RL22 with the 208's? I've had great results with it, and 200's, as well as the 208 A-Max.

Thanks.

R.


I shot RL22 alot and it shot good groups at 100yds with the 208A-Max and 210gr Berger but the ES and SD were too high for long range shooting, the only other powder that shot close to the numbers of H1000 was RL25.
Shooting the gong at 1000yds the Berger 210gr VLD with H1000 is by far the best combo I have found in several 300WM's.
The 208gr A-Max's and RL25 are a good second choice. RL22 has worked awesome with the 200gr Accubond but not the 208gr or 210gr.
Do you use a good chronograph when testing ????
B


I have decent chrony, but nothing fancy, and it gets used every time I work up loads. The SD on my 208 A-max load was around 35fps. This was with RL22. I will add that this was done in the fall, with cooler temperatures. We are also fairly high here, altitude wise, at 3600 feet. I wonder if those two factors have more than a little to do with results?

Thanks.

R.


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Originally Posted by David_Walter


What load (grains?) should I start with? I'm shooting Fed brass, and I just ran out and got some H1000....

I also use the Fed brass, just where to start is a tough question because of chamber and throat differences......73gr H1000 should be a safe srart point.
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Originally Posted by Rman


I have decent chrony, but nothing fancy, and it gets used every time I work up loads. The SD on my 208 A-max load was around 35fps. This was with RL22. I will add that this was done in the fall, with cooler temperatures. We are also fairly high here, altitude wise, at 3600 feet. I wonder if those two factors have more than a little to do with results?

Thanks.

R.


You made my point....35fps for a SD would be incredible in my 220 swift with 55gr bullets, 35fps SD would also be good in the 300WM if you are shooting 165gr bullets.

The 210gr VLD Berger is a long range bullet, it is also heavy for the bore size in a 30cal. A 35fps SD is not acceptable with a combo that is capable of 1000yd accuracy, with my current rifle shooting the 210gr VLD with H1000 the muzzle velocity is only 2865fps but the SD is 8 fps.
At 1000yds you will get significantly more vertical in your group's with a 35fps SD.
H1000 is the only powder that I found that is capable of great accuracy and single digit SD's ,the only other powder in the realm with this combo was RL25 and SD's in the teen's. the 208 A-Max shoot good but not great.
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Jammed onto the lands 0.010?


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This is what Berger sent to me. I'm assuming standard OAL, not seated long.

300 Winchester Magnum � Berger 210 VLD

Bullet Powder Start Load Start Velocity Max Load Max Velocity Fill Ratio
210 Grain VIHT N165 67.5 2607 71.3 2743 96.3%
210 Grain RE-22 67.5 2694 71.1 2830 95.0%
210 Grain IMR 7828 ssc 68.0 2715 71.4 2849 93.9%
210 Grain WW WXR 68.0 2700 71.5 2832 94.0%
210 Grain RE - 25 70.5 2726 74.2 2859 100.7%
210 Grain H1000 72.5 2689 76.2 2836 100.0%
210 Grain NORMA MRP 2 72.5 2721 76.2 2864 102.9%
210 Grain Ramshot Magnum 73.5 2703 77.5 2863 97.7%
210 Grain RETUMBO 69.5 2593 77.2 2873 103.7%
210 Grain AA XMR 3100 66.5 2594 70.5 2738 95.2%
210 Grain VIHT N160 65.5 2599 69.0 2726 97.2%
210 Grain IMR 4831 63.0 2640 66.0 2745 89.4%
210 Grain H4831 SC 69.0 2679 72.6 2819 94.9%
210 Grain IMR 4350 61.0 2671 64.4 2794 87.9%
210 Grain VIHT N170 74.5 2626 78.3 2772 106.9%


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I've talked to Berger before. They did the same for me. Spit out a bunch of theoretical load data from a load program (Quickload or something). Could never get them to give me any real info on what thier testing showed worked good. They just gave the standard "all rifles are different and what works for us may be different than what works for you".

From what I've heard and read from benchrest guys, H1000 is the 300 Win Mag powder for 180+ bullets. I never reloaded for my 300 and sold it yesterday. But thats what I was always told.


Last edited by Chesapeake; 06/04/10.

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H4831 with 210 bergers and F210 primers is one of the main go to loads for the 1000 yard BR game.

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I ran the H4831 with the 210 Bergers and 208 Amax and had great results with my group from both. The Amax was a little better but I was not happy with the speed I was getting. With 67 gr of H4831ssc I was only getting 2580 fps. The target below shows what the groups were looking like at this speed but I am taking this gun out to the 1000yrd line and wanted to get the speed up to around 2800. As I increased the powder the group opened rapidly with the Amax and Berger. All that being said I went to H1000 and am getting the speed and the groups are almost as good. This is out of a first generation Sendero.

[Linked Image]

Last edited by brasstacks; 06/16/10.
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