Twist Rate for a 284 Winchester with 184 hybrids

[Puzzaz01]

Looking into spinning up a straight 284 Win and was wondering what twist rate people are running?
Running the 184 Berger Hybrids, the Berger twist rate calculator is showing a 8.5 to a 8.0 to be the most effective but I was under the impression that a 9 twist was what most were running. Any real world experience would be greatly appreciated.

Thanks
Darrin

 

[ShootDots]

An 8.5 will take care of it.. I am in the process of acquiring the components for a 7mm Sherman Short Mag and I ordered a Krieger 8.5 twist specifically for the 184s..

 

[284winner]

9 does fine but the 8-8.5 is best for 184s. You can shoot lighter bullets just as good with the 8.5 barrels too. The 9 doesn't do as well with heavies but will stabilize them.

 

[accuracyman]

I shoot the 184's with a 8.5 twist like the others above.

 

[Puzzaz01]

Thank you all for the great information.

Darrin

 

[Puzzaz01]

I shoot the 184's with a 8.5 twist like the others above.

If you're shooting a straight 284 what brass are you using?

 

[Rope2horns]

I shoot a 9twist..haven't had any problems yet that I'm aware of...Lapua brass.

 

[Lbart]

I shoot a 9twist..haven't had any problems yet that I'm aware of...Lapua brass.

What he said!

 

[Tod Hendricks]

I shoot a 9twist..haven't had any problems yet that I'm aware of...Lapua brass.

Um yeah, that pretty much sums it up!!!

 

[accuracyman]

Sorry for the late response I shoot both Winchester and Norma brass. I have a lot of bulk Winchester brass from years ago so I mostly shoot it. My reamer was set up to handle the Winchester brass without cutting the neck if I choose not to. I will usually just skim cut the neck to where it cuts almost all the way around for better uniformity. That gives me a total of about .004" clearance on my loaded round.

 

[1shot]

I found my 9 twist to shoot "OK" at 1,100 ft. ASL but took it to Byers Colorado at 5,000+ and it was an X eating machine. Screwed on a 8.25 twist and all is fine in the world now.
I hope this helps,

Lloyd

 

[CarlGeorge]

I'm excited to hear the reports of the 9-twist doing well at higher altitudes. I live in CO and I've got a .284 9-twist barrel sitting in my basement - waiting for the action and stock order to be delivered.

I'm very eager to get this thing up and running and seeing what it will do.

 

[rimfiremac]

8 or 8.25 near sea level

 

[Goldenfinger]

How are you guys liking the 184's? What BC are you running or are you using the AB custom curve? Any 1K yd beyond experience with them?

 

[rhovee]

I also curious as I have a 7 saum with a 1:8.5 and want to run the 184s.

 

[F Class John]

I’ll echo many above. I’ve been running the 184s for a little bit now and am very happy with 8.5 twist.

 

[Willow]

I have a brand new 8.5 twist Brux ready to go for these bullets - shooting at sea level and I'm more than confident these bad boys will work.

 

[KenOath]

I have a brand new 8.5 twist Brux ready to go for these bullets - shooting at sea level and I'm more than confident these bad boys will work.

Keep us posted.....

 

[Willow]

Keep us posted.....

Will do mate, should have the new barrel up and running in the next couple of months - just a question of timing at the moment.

 

[BIGMAC]

What fb are y’all using for the Berger 184?? Shooting a Straight 284 Winchester and a 7mmRSAUM
THANKS for any info.