284 Win or 7SAUM build on long action

[Nitrosteel]

Wanting to build a rifle in one of the above chamberings for hunting. Looking to build a rifle that comes in under 9 lbs and I think I’ve got most of this figured out:

Know:
Manners EH1
Remington 700 LA

I know can get more speed with several other LA chambering - but I don’t want anymore speed/recoil than it will take to get the desired result below.

Planning:
180 Berger VLD Hunting
Temp stable powder (like H4831sc)
Peterson brass if 284 Win
ADC brass if 7 SAUM
24-26” 3B Bartlein 1/8 twist

Want:
1). Fairly certain at least 2820 muzzle velocity without moving to a non-temp stable powder or having to move to a longer barrel. Trying to accomplish a solid 1300 ft pounds of energy at 900 yards (I can only get this at 500 yards with my 7mm-08 (which I love...).

I’d rather go with the 284 win if it will do it. It sounds like barrel life is better, round feeding will be easier/better, very inherently accurate round, good (in stock) brass choice, etc...

Can I be fairly certain that I can get this speed with this short of a barrel out of a straight 284 win using a temp stable powder (not sure Reloader 17 fits the bill, but I know it produces more speed)? Or will have to move to the 7SAUM to get it done? I don’t have access to quick load, and would really appreciate your input.

If the 284 will do it - how much barrel do I need? Also, same if I have to resort to the 7SAUM (I assume using H1000) - how much barrel would it require?

Thank you for your input.

 

[Nitrosteel]

Just FYI - this rifle will be shot quite a bit, not just for hunting. Barrel life will be important.

 

[WeiserBucks]

I would do a 284 and use Lapua 6.5x284 brass . I'd also skip the VLDs and go straight to the 180 Hybrids . Between my family and myself we've stomped a train load of game up to and including elk with them . The Hybrids are just more forgiving in every respect, load development and killing ability.

 

[Nitrosteel]

Any idea on the velocity I should expect to get out of a long action / shorter barrel 284?

 

[McNamara0851]

26” .284 WIN. Middle of the road charge with 4831SC.

 

[Nitrosteel]

Awesome. Thank you for your help.

 

[McNamara0851]

No problem. If it makes any difference, it’s a 9t Bartlein spun up by Moon on a defiance. FGMM LR primers and Winchester brass. It is the most consistent rifle I own. I don’t shoot it much anymore, but when I go on a hunting trip it’s all I take.

 

[Nitrosteel]

McNamara,

What brass are you using? Also just curious - are you hunting with the hybrids?

 

[Nitrosteel]

I see our posts crossed. Thank you again.

 

[McNamara0851]

McNamara,

What brass are you using? Also just curious - are you hunting with the hybrids?

The Winchester brass is good enough for me, but used to be a little scarce new. I have 500 pieces and I don’t plan on switching to Lapua anytime soon. As far as hunting with hybrids goes, I am just a predator hunter. When I go coyote hunting in Oklahoma I have the opportunity to shoot dogs as far as I can see them on the backside of a mountain range, hence the .284 as a predator rig. I have taken them as far as 790y, but have watched packs coming in from better than a mile. So, yes the hybrid works great for me. Other than family guns, my .284 is my only gun that couldn’t be bought, within reason.

 

[Sig Marine]

You don’t mention whether you have an action or not but the bolt faces are different for these two rounds. That said, I’ve got a rifle chambered in .284 with a 28” 8 twist barrel that puts 180s out at 2830 fps using 4831SC with very little recoil using a LB brake. A 26” barrel might not get that much velocity but I would think that 2800 fps, or there abouts, would be a reasonable expectation for a .284 with 180s. While you’ll get more velocity with a SAUM, recoil will increase and barrel life will not be as good.

 

[Ankeny]

My go to hunting rifle is a .284 Win. with a 26 inch tube. Loaded long in good brass and the round sizzles. I am using Norma brass that was a special run for bullets.com.

 

[McNamara0851]

Found this, pretty hot loads if I remember correctly.

 

[Tapp111]

I love my 7SAUM. 195gr Berger hunting, H1000, 28 inch proof carbon barrel. COAL: 3.203. EH-1 stock. Kicks like a mule but shoots great. Shoots about .3 or so MOA. My elk gun

 

[earlcurtis67]

Barrel life with the SAUM will be short and brass is expensive and hard to find. I think 2820 will be hard to achieve in the .284 without trashing the brass. I think you could come close with RL17 but it is temp sensitive.
I shoot a .284 in LRBR, I can push my brass to 2860 through a 30” barrel but the primer pockets won’t last long (Norma brass)I found a nice node at 2824.
You may want to look at the Shahane, from what I understand it’s easy to fire form and easy on brass. Using a temp stable powder like H4831 I think you could come close to you’re desired MV
I would echo the comment about the hybrids being easy to tune but I can’t comment on how well they do on game. Good luck. E

 

[vern.284]

My go to hunting rifle is a .284 Win. with a 26 inch tube. Loaded long in good brass and the round sizzles. I am using Norma brass that was a special run for bullets.com.

I remember that sale at the end. 1000 round case for like $500 I think