OpticsTalk by SWFA, Inc. Homepage SWFA     SampleList.com
Forum Home Forum Home > Firearms, Bows, and Ammunition > Shooting
  New Posts New Posts RSS Feed - Magnum Article
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

Visit the SWFA.com site to check out our current specials.

Magnum Article

 Post Reply Post Reply Page  <1 234
Author
Message
John Barsness View Drop Down
Optics Optimist
Optics Optimist


Joined: January/27/2009
Status: Offline
Points: 785
Post Options Post Options   Thanks (0) Thanks(0)   Quote John Barsness Quote  Post ReplyReply Direct Link To This Post Posted: May/28/2009 at 21:38
I am a big fan of the .300 H&H myself, but no, you can't load it up to beat the .300 WSM at the same pressures.
 
In fact case capacity is just about identical. About three years ago I talked my gunsmith friend Charlie Sisk into doing an experiment. He first chambered a HEAVY premium barrel to .300 H&H and ran some loads through it, using various bullet weights and powders, while recording the pressures on a Pressure Trace strain-gauge system.
 
Then he rechambered the same barrel to .300 WSM, so that the new chamber used the same throat as the .300 H&H chamber. Charlie ran the same bullets and powders through the .300 WSM, and found that the exact same powder charges produced almost exactly the same velocities and pressures. Sometimes they would be slightly higher in the WSM chamber and sometimes slightly higher in the .300 H&H chamber, but for all practical purposes the cartridges are identical except for case shape and length.
 
In fact with both chambers the same powder (Ramshot Hunter) turned out to be most accurate. The groups were shot on and indoor range with a high-powered scope. I can't remember it exactly but knowing Charlie it was probably a Leupold. I do remember the entire rifle weighed over 30 pounds, so it held pretty steadily!
Back to Top
Oldtrader3 View Drop Down
Optics Journeyman
Optics Journeyman
Avatar

Joined: May/16/2009
Location: WA (state)
Status: Offline
Points: 445
Post Options Post Options   Thanks (0) Thanks(0)   Quote Oldtrader3 Quote  Post ReplyReply Direct Link To This Post Posted: May/28/2009 at 22:15
I used 69 grains of IMR 4350 with 165 Nosler Partitions in the .300 H&H.  With the 26" barrel it yielded about 3000fps.  That rifle/load worked on everything (mostly mule deer) that I shot with it up to 350 yards with a Zeiss 3-9x36 scope.  Of course you know that the 1000 yard record that was set with the .300 H&H which stood for quite a few years. 
 
My .30 WSM was also about the same velocity as the .300 H&H.  I gave the .30 WSM A-Bolt Medallion to my middle son.  He has moved to Laramie, WY and has an elk rifle in the .30 WSM.  Now I am without a .30 mag. but who knows what the future holds.
CDR3
Back to Top
billyburl2 View Drop Down
Optics Master Extraordinaire
Optics Master Extraordinaire
Avatar

Joined: January/08/2009
Location: Cottonwood, AZ
Status: Offline
Points: 4015
Post Options Post Options   Thanks (0) Thanks(0)   Quote billyburl2 Quote  Post ReplyReply Direct Link To This Post Posted: May/28/2009 at 22:17
Man I would love to see those recipes and groups!
If it is tourist season, why can't we shoot them?
Back to Top
Oldtrader3 View Drop Down
Optics Journeyman
Optics Journeyman
Avatar

Joined: May/16/2009
Location: WA (state)
Status: Offline
Points: 445
Post Options Post Options   Thanks (0) Thanks(0)   Quote Oldtrader3 Quote  Post ReplyReply Direct Link To This Post Posted: May/28/2009 at 22:24
For Wimbleton?  The groups with the IMR 4350 in (3) different .300 H&H, Model 70's were consistantly MOA.
CDR3
Back to Top
billyburl2 View Drop Down
Optics Master Extraordinaire
Optics Master Extraordinaire
Avatar

Joined: January/08/2009
Location: Cottonwood, AZ
Status: Offline
Points: 4015
Post Options Post Options   Thanks (0) Thanks(0)   Quote billyburl2 Quote  Post ReplyReply Direct Link To This Post Posted: May/28/2009 at 22:27
Actually from the test that John was referring to. As I currently load for .300 wsm.
If it is tourist season, why can't we shoot them?
Back to Top
John Barsness View Drop Down
Optics Optimist
Optics Optimist


Joined: January/27/2009
Status: Offline
Points: 785
Post Options Post Options   Thanks (0) Thanks(0)   Quote John Barsness Quote  Post ReplyReply Direct Link To This Post Posted: May/28/2009 at 22:49
The results of the tests were published in HANDLOADER magazine maybe 2-3 years ago, I can't remember the issue.
 
My own present .300 H&H is a Model 70 Classic rebarreled by Classic Barrel & Gun Works (www.cutrifle.com) in Prescott, Arizona. They make cut-rifled, hand-lapped barrels and very fine rifles. I have both a synthetic and fancy walnut stock for it, and as you might imagine it shoots very well.
 
But since I am a rifle loony I also have a .300 WSM (one of the new South-Carolina Model 70's, with fancy wood,  that shoots very well itself), a Heym SR-21 .300 Winchester Magnum (also extremely accurate) and a Weatherby Vanguard Sub-MOA in .300 Wby. that also is right in there as far as accuracy.
 
What the heck I need four .300 magnums for I have no idea.
Back to Top
300S&W View Drop Down
Optics God
Optics God
Avatar

Joined: January/27/2008
Location: Burlington,WV
Status: Offline
Points: 10592
Post Options Post Options   Thanks (0) Thanks(0)   Quote 300S&W Quote  Post ReplyReply Direct Link To This Post Posted: May/29/2009 at 07:32
  .300 H&H  versus  .300 WSM (Handloader #245)
 
   .300H&H w/180 Nosler Partition:
     Powder              RL19  67gr                            Hunter  67gr                             H4831  68gr
    Muzzle velocity    2914                                      2923                                         2918          
    Velocity spread    9                                            65                                             14
    Avg pressure       57,177psi                               64,686                                       56,165
    Pressure spread  3,034psi                                 4,171                                        1,517
    100yd accuracy   .31                                          .63                                            .75
 
 
   .300H&H w/150gr Barnes TSX:
     Powder                RL19  69gr                             Hunter  71gr                            H4831 76gr
     Muzzle velocity    3194                                       3241                                        3213
     Velocity spread    27                                           60                                            12
     Avg pressure       55,051psi                                66,481                                      52,170
     Pressure spread  1,213psi                                  4,551                                       4,854
     100yd accuracy    .88                                          .31                                            .60
 
 
__________________________________________________________________________
 
 
   .300 WSM w/180gr Nosler Partition:
     Powder                  RL19 67gr                             Hunter 67gr                     H4831 68gr
     Muzzle velocity       2918                                     2942                               
"I ain't got time to bleed!"
Back to Top
 Post Reply Post Reply Page  <1 234
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 12.01
Copyright ©2001-2018 Web Wiz Ltd.

This page was generated in 0.242 seconds.