The Handloaders Bench Home
Home Search search Menu menu Not logged in - Login | Register
The Handloaders Bench > Rifles > Rifles > What is the best barrel twist rate for the .300 Winchester Magnum?

Attention: Due to an increase in spammers all new members will be activated manually by an administrator, and start out as probationary members. You will only be able to start a welcome post in the welcome new members forum. You can reply to all other posts. Once you have reached 5 posts you will be a full member and can start topics. We apologize for the inconvenience but spammers are becoming a real problem. We are also experiencing problems with new members receiving activation emails. We are manually activating new members. Please be patient with us. We will activate your membership within 24 hours of registration. We are sorry for any inconvenience this might cause. HB Admin

What is the best barrel twist rate for the .300 Winchester Magnum?
 Moderated by: WildBill, wheezengeezer, DesertMarine
 New Topic   Reply   Printer Friendly 
 Rate Topic 
AuthorPost
 Posted: Fri Jul 3rd, 2009 06:44 PM
   PM  Quote  Reply 
1st Post
Sogmanzulu
Full Member


Joined: Mon Aug 4th, 2008
Location: Medford, New York USA
Posts: 80
Photo: [Download]
Are you a handloader?: Yes
Favorite type of cartridge to load?: rifle
My favorite chambering is:: 
Status: 
Offline

  back to top

I have a Remington model 700 PSS in .300 Win mag that I have been slowly upgrading over time. I have dropped it into an AICS Chasis stock, installed an over sized bolt knob, and installed a Badger Ordnance extractor.

I am now going to have the rifle sent to my gunsmith to have the following modifications:
  • Install a match grade Bartlein barrel.
  • Install a Badger Ordnance Thruster muzzle break.
  • Bead blast and coat with flat black Cerakote.
  • Tune the Remington trigger (The gunsmith talked me out of installing a Jewel trigger).
My question is regarding the barrel twist rate. I handload Sierra HPBT's from 180gr to 220 gr, and need to know what barrel twist is best for these weights?

The barrel that Remington manufactured the rifle with does a great job in my experiences, but I'm sure I can do better.



____________________
NRA Life Member
NAHC Life Member


 Posted: Fri Jul 3rd, 2009 08:19 PM
   PM  Quote  Reply 
2nd Post
dakotasin
Board Founder


Joined: Tue Feb 8th, 2005
Location: South East - Bucks And Gazelles -, South Dakota USA
Posts: 722
Photo: 
Are you a handloader?: Yes
Favorite type of cartridge to load?: rifle
My favorite chambering is:: ?
Status: 
Offline

  back to top

remington factory barrels are 12 twist for 30 cal, and i don't think in a 300 win mag a 10 twist is realley necessary. having said that, you tend toward the higher end of bullet weights, and since the cost is the same, i'd reccomend a 10 twist.

 

good luck!



____________________
Hunting is not a matter of life or death; it is much more important than that!



 Posted: Fri Jul 3rd, 2009 11:21 PM
   PM  Quote  Reply 
3rd Post
Timberghozt
Board Founder


Joined: Fri Feb 11th, 2005
Location: Texas USA
Posts: 7081
Photo: [Download]
Are you a handloader?: Yes
Favorite type of cartridge to load?: I load everything!
My favorite chambering is:: 300 Winchester Magnum ...
Status: 
Offline

  back to top

How far are you going to push that 300 Win Magic(Yardage) and what grain bullet are you gonna use in her?



____________________
"He who fights with monsters might take care, lest he thereby become a monster; For if you gaze for long into an abyss, the abyss gazes also into you." - F.Nietzche


 Posted: Sat Jul 4th, 2009 02:51 AM
   PM  Quote  Reply 
4th Post
Sogmanzulu
Full Member


Joined: Mon Aug 4th, 2008
Location: Medford, New York USA
Posts: 80
Photo: [Download]
Are you a handloader?: Yes
Favorite type of cartridge to load?: rifle
My favorite chambering is:: 
Status: 
Offline

  back to top

Actually, the factory spec on the twist rate is 1:10". I'm sure that a better twist rate exists...



____________________
NRA Life Member
NAHC Life Member


 Posted: Sat Jul 4th, 2009 02:52 AM
   PM  Quote  Reply 
5th Post
Sogmanzulu
Full Member


Joined: Mon Aug 4th, 2008
Location: Medford, New York USA
Posts: 80
Photo: [Download]
Are you a handloader?: Yes
Favorite type of cartridge to load?: rifle
My favorite chambering is:: 
Status: 
Offline

  back to top

I have been sticking with the 220 gr Sierra HPBT, but I may go down in weight depending on what I am looking to do (hunting deer, wild hog, ect).



____________________
NRA Life Member
NAHC Life Member


 Posted: Sat Jul 4th, 2009 07:02 PM
   PM  Quote  Reply 
6th Post
miestro_jerry
Guest
 

Joined: 
Location:  
Posts: 
Photo: 
Are you a handloader?: 
Favorite type of cartridge to load?: 
My favorite chambering is:: 
Status: 
Offline

  back to top

In my 300 Magnum rifles, I always tend to go for the heavier bullets. If you are going to hunt big game, the 220g Sierra HPBT or the Game King are an excellent choice. If what to tune this rifle for 1,000 meter paper punching, I would learn towards the 168 g Sierra Match king

I believe the Remington spec is 1 in 10 twist.

Jerry



 Posted: Tue Jul 14th, 2009 10:28 PM
   PM  Quote  Reply 
7th Post
Paul B
Master Handloader
 

Joined: Sun Sep 30th, 2007
Location:  
Posts: 4132
Photo: 
Are you a handloader?: Yes
Favorite type of cartridge to load?: I load everything!
My favorite chambering is:: 
Status: 
Offline

  back to top

My pet load uses 200 gr. bullets in the .300 Win. Mag.  Twist is 1 in 10".

Paul B.



 Posted: Tue Jul 14th, 2009 10:42 PM
   PM  Quote  Reply 
8th Post
Timberghozt
Board Founder


Joined: Fri Feb 11th, 2005
Location: Texas USA
Posts: 7081
Photo: [Download]
Are you a handloader?: Yes
Favorite type of cartridge to load?: I load everything!
My favorite chambering is:: 300 Winchester Magnum ...
Status: 
Offline

  back to top

Opinions are many but in my 2 cents worth.I do  load 168 grain Matchkings but I relegate them to 600 yard fire from my 300.
I do like the 190 grain MK for over 600 yards..
I experimented a bit with the 175 grain Matchking and though it is good bullet for long range performance,I prefer the 190 grain.The 220 MK is also a valid choice and most suitable for 1000 yard shooting...as well as the 220 grain Spitzer for whacking big critters.
Ballistic coefficients and terminal performance aside..If I wanted to hunt whitetails and hogs with my 300, which I do.I use a 165 grain Hornady SST and have used 150 grain ballistic tips..The 165 grain Hornady bullet smacks the living crap out of hogs as well as whitetails....when it comes from a 26 inch tube.:thumbs:
TG



____________________
"He who fights with monsters might take care, lest he thereby become a monster; For if you gaze for long into an abyss, the abyss gazes also into you." - F.Nietzche


 Posted: Fri Jul 17th, 2009 01:54 AM
   PM  Quote  Reply 
9th Post
ottsixx
Full Member
 

Joined: Thu Jul 2nd, 2009
Location:  
Posts: 155
Photo: 
Are you a handloader?: Yes
Favorite type of cartridge to load?: I load everything!
My favorite chambering is:: 7X57,6.5X55 ot the 243 winchester
Status: 
Offline

  back to top

It has been my observation in the realm of 30 calibers the the 1:10 twisted rifles are best suited to the 165-168 grain class of bullets to stabalize fot best accuracy as the 150s on the bottom of the heap and maybe the 180s on the top but if I were gonna be shootin lots of those 220s I think I would take a serious look at a 1:9 twist barrel,and thats just my 2 cents on the matter...................



 Posted: Fri Jul 17th, 2009 06:54 PM
   PM  Quote  Reply 
10th Post
Paul B
Master Handloader
 

Joined: Sun Sep 30th, 2007
Location:  
Posts: 4132
Photo: 
Are you a handloader?: Yes
Favorite type of cartridge to load?: I load everything!
My favorite chambering is:: 
Status: 
Offline

  back to top

ottsixx wrote: It has been my observation in the realm of 30 calibers the the 1:10 twisted rifles are best suited to the 165-168 grain class of bullets to stabalize fot best accuracy as the 150s on the bottom of the heap and maybe the 180s on the top but if I were gonna be shootin lots of those 220s I think I would take a serious look at a 1:9 twist barrel,and thats just my 2 cents on the matter...................
 

It has been stated that a 1 in 12" twist will not stabilize 220 gr. bullets. Who stated that nonsence so very many years ago is way beyond me. I doubt if anyone knows for sure. A very long time ago, I quit believing some of the crap that some of the gun writer spewed from their typewriters (remember them?) as what they said did not go along with my experences. So, when a friend who built custom rifles offered to rebarrel an FN Commercial sporter that I had that had a bad barrel (I got it cheap to use as a donor.) offered to rebarrel the gun for me at cost, I jumped on it. As I shoot a lot of cast bullets, I went with the 1 in12" twist as that's a better rate for lead bullets. I kept hearing that BS about the 1 in12" being no good for heavy bullets so I loaded up some and found out otherwise. An article by Jack O'Connor saying that it was all BS as well made me wanting to find out the truth of the matter. Jack was right and the "egg-spurts" in the gun rags were wrong. I even went to the trouble to take on one of those "egg-spurts after he wrote (parroted) than old line of BS in one of his articles. I even sent him targets, and told him that if he was anywhere near my neck of the woods, he could watch me load the ammo, and the watch me shoot some and he could shoot some and learn the truth. He declined. No guts no glory sez I.

Paul B.


style="FONT: 10pt arial,san-serif; COLOR: black"



 Current time is 10:34 AM
The Handloaders Bench > Rifles > Rifles > What is the best barrel twist rate for the .300 Winchester Magnum?
Top




UltraBB 1.17 Copyright © 2007-2008 Data 1 Systems
Page processed in 0.2208 seconds (30% database + 70% PHP). 29 queries executed.