284 win 180 hybrid 4831sc

[avidflyer]

Starting some load work up on a straight 284 Quick Load shows 2730-2750 for 50.0-50.4 of 4831sc

If I remember correctly 2700-2750 is a pretty good node correct? what is real world MV's with that load?

Whats been some common nodes?

Using necked up Lapua

Thanks

 

[coford]

I would shoot for more like 2800 to 2850 with 180's and H4831sc. I takes me around 54.0 to hit this velocity level.

 

[ngb1787]

54.4, 2830fps,

 

[normmatzen]

Now try RL-16! You may be surprised.

 

[ShootDots]

Starting some load work up on a straight 284 Quick Load shows 2730-2750 for 50.0-50.4 of 4831sc

If I remember correctly 2700-2750 is a pretty good node correct? what is real world MV's with that load?

Whats been some common nodes?

Using necked up Lapua

Thanks

I believe that the 50.0 to 50.4 loads you are referring to is for H4350. You will have to get past 54.0 grs of even a fast lot of H4831SC to get you ove the 2800 foot threshold. My bet is you are looking at 54.5 to 55.3 (depending on how fast or slow of a lot of H4831SC you have) somewhere in there for H4831SC..

 

[justme]

I believe that the 50.0 to 50.4 loads you are referring to is for H4350. You will have to get past 54.0 grs of even a fast lot of H4831SC to get you ove the 2800 foot threshold. My bet is you are looking at 54.5 to 55.3 (depending on how fast or slow of a lot of H4831SC you have) somewhere in there for H4831SC..

55.0 gives 2840 for me in 27inch Bartlien

 

[Cody Richardson]

Same here 55.1 gives me 2840 with 4831sc

 

[Lapua40X]

Nodes? What nodes? According to Quickload this one doesn't peak at a node but it obviously works very well with 1/4 moa at 200 yards:



55.7 gr H4831SC MV 2851

 

[brxbrad]

Did extensive load Development when I first started shooting the .284. Of course the amount of powder will depend on the length of your barrel when using 4831SC but with my 32" Bartlein 54.5 gr is the magic number with the Hybrid 180. 2850FPS in my gun. I achieve single digit ES/SD.

The following is from the Cartridge Guide section on 7mm

.284 Winchester Load Map
Powder Grains Primer Bullet Velocity Comments
H4831sc 54.5 CCI BR2 180gr Berger VLD 2890 Lapua brass. Ballard (F-Class Champ) match load. 32″ bbl. Accurate. Single-digit ES/SD.
H4831sc 53.0 CCI BR2 180gr Berger VLD 2810 Lapua brass. Tierney data. 30″ bbl. Very accurate 0.3 MOA, SD=6. Soft seat Bergers into lands.
H4350 50.7 CCI BR2 180gr Berger VLD 2825 Winchester brass. Litz match load. Moderate. 2825 fps from a 30″ barrel. Very low SD.
RL 17 52.0 CCI BR2 180gr Berger VLD 2953 Winchester brass. Whitley test load. Not Max. Seated .010″ in lands.ES 19, SD 7.
H4350 51.0 CCI 200 175gr Sierra MK 2822 Lapua brass. 30″ bbl. Jumping .015″, .002″ neck tension.
VV N160 54.3 Rem 9.5 168gr Sierra MK 2800 Sierra Max Load. 2.800″ COAL.
H4350 50.5 CCI BR2 162gr Horn
A-Max 2910 Lapua Brass. 30″ bbl. Good F-Class load. Bullets worked best in lands.
Hybrid 100V 54.0C CCI 200 162gr Horn BTSP 2864 Hodgdon Max Load. 2.970″ COAL.
RL 19 53.0 Fed 210M 154gr Horn
Interbond 2900 Win Brass. Alan R. hunt load. Good vel in short barrels.
Varget 48.3 Rem 9.5 140gr Sierra SBT 2900 Sierra Hunting Load. 2.800″ COAL.
H414 55.0 CCI 200 139gr Horn SST 3075 Hodgdon Max Load. 2.915″ COAL.
WARNING: With all loads, ALWAYS START 10% LOW and work up incrementally.

 

[big john 5394]

My load is 55.3 h4831sc lapua brass wolf primers .004 off lands 180 hybrid 2900 fps in 32 brux bbl. 1in8 twist .140 at 100 yds 5 shots

 

[jawjaboy]

WOW. I've got a slow barrel or a slow lot of H4831. With a Brux 30" 8.5 I'm only getting 2725 fps with 54.5 gr with SMK 183s Norma brass CCI 200. But it's a hammer.

 

[Rogmay]

WOW. I've got a slow barrel or a slow lot of H4831. With a Brux 30" 8.5 I'm only getting 2725 fps with 54.5 gr with SMK 183s Norma brass CCI 200. But it's a hammer.

gawga_boy, I went back and looked at my test loads with the 183mk, I was getting 2780 fps with 54.5 of H4831 and 2808 fps with 55gr. Shooting a 30" Krieger with an 8 twist and Fed 210M, it liked the MK's as well!

 

[Cowtownup]

What was your freebore on that 284 Rogmay?

 

[Rogmay]

What was your freebore on that 284 Rogmay?

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