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Feb 12th, 2024
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 300BO Load Advice
#8004534
10/10/20 12:22 AM
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Joined: Nov 2011
Posts: 153
Dub32
OP
Woodsman
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OP
Woodsman
Joined: Nov 2011
Posts: 153 |
Fairly new to reloading and have never reloaded 300BO. Looking at loading hunting rounds out of a 10.5” barrel. Based on the components I can get, below is what I’m thinking.
Primer - Winchester small rifle
Brass - Topbrass 300bo preformed
Bullet - Sierra 125gr spitzer pro hunter
Powder - Hodgdon H110
Loading test rounds from 17.2 to 17.8. Step up every .2 grains for testing in my rifle.
Any advice or opinions on this potential load? Any feedback is more than welcomed. Thanks in advance.
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Re: 300BO Load Advice
[Re: Dub32]
#8004557
10/10/20 12:35 AM
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Joined: Nov 2011
Posts: 9,935
unclebubba
THF Trophy Hunter
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THF Trophy Hunter
Joined: Nov 2011
Posts: 9,935 |
Haven't used the sierra pro hunters, but have heard that they don't expand very well at 300BLK velocities. I like SST's
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Re: 300BO Load Advice
[Re: Dub32]
#8004587
10/10/20 01:02 AM
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Joined: Oct 2008
Posts: 2,743
Murphscout
Veteran Tracker
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Veteran Tracker
Joined: Oct 2008
Posts: 2,743 |
I run 20.2 H110 under a Barnes 110 Tac-tx and it is SUPER accurate. Runs at a crazy consistent 2450. CCI400. But this is out of a 16" barrell.
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Re: 300BO Load Advice
[Re: Dub32]
#8004635
10/10/20 01:45 AM
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Joined: Jan 2016
Posts: 1,052
glocker17
Pro Tracker
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Pro Tracker
Joined: Jan 2016
Posts: 1,052 |
Exact same load I was using. 20.2 under the 110's
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Re: 300BO Load Advice
[Re: glocker17]
#8004665
10/10/20 02:02 AM
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Joined: Jun 2006
Posts: 748
Dennis in Ft Worth
Tracker
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Tracker
Joined: Jun 2006
Posts: 748 |
I think that you're in the ball park. I'm at 18 grains of H110 with 130 grain Hornady's.
![[Linked Image]](https://i.ibb.co/5kgxKb9/Ruger49B.jpg) Me and ol' RUGER, 74 years and still shooting.
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Re: 300BO Load Advice
[Re: Dub32]
#8004680
10/10/20 02:14 AM
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Joined: Nov 2011
Posts: 153
Dub32
OP
Woodsman
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OP
Woodsman
Joined: Nov 2011
Posts: 153 |
Appreciate everyone’s input. Unclebubba, Looked for SST’s in 125gr but couldn’t find any in stock.
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Re: 300BO Load Advice
[Re: Dub32]
#8004690
10/10/20 02:26 AM
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Joined: Nov 2011
Posts: 9,935
unclebubba
THF Trophy Hunter
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THF Trophy Hunter
Joined: Nov 2011
Posts: 9,935 |
Appreciate everyone’s input. Unclebubba, Looked for SST’s in 125gr but couldn’t find any in stock. I know, I can't find them either. I have about 250 loaded rounds with SST, but otherwise can not find them. I have thought about buying nosler BT, but I like the SST so much that I am holding out for them.
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Re: 300BO Load Advice
[Re: Dub32]
#8005002
10/10/20 03:46 PM
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Joined: Sep 2009
Posts: 18,954
ChadTRG42
THF Celebrity
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THF Celebrity
Joined: Sep 2009
Posts: 18,954 |
The 125 Sierra SP Pro Hunter bullet will expand VERY well at 300 BO velocities. The reason why I like any of the 125 grain options, is because you have enough velocity to still get good expansion as well as deep penetration. I've been sent many pictures of game as well as bullets recovered from pigs and deer that show this expansion. Out of a 16" AR barrel, 2250 fps is no problem, and expansion is adequate for the round. I've been loading and selling the 125 grain Sierra SP for years now, and it works very well, and is lower priced than other 125 grain options. It makes a good choice for the 300 BO.
When you get into the 150 grain weights and velocity slows down to around 1900 to 1950 fps and bullets get tougher, that's when I see little to no expansion. The 150 BT had zero expansion on pigs I shot with .308" entrance and exit holes, but pigs still went down.
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Re: 300BO Load Advice
[Re: Dub32]
#8005051
10/10/20 04:18 PM
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Joined: Nov 2011
Posts: 2,495
der Teufel
Veteran Tracker
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Veteran Tracker
Joined: Nov 2011
Posts: 2,495 |
I use 20 grains of H110 pushing Hornady 110 grain SP bullets.
Don't have a chronograph, but published data says they *should* run around 2400 FPS out of a 16" barrel
I use the Hornady bullets 'cuz they're typically less expensive, although bullet cost really isn't a big ticket item when you get right down to it
Still, they work pretty well for what I'm doing. My longest shots are usually less than 150 yards. Most are less than 100 yards.
Last edited by der Teufel; 10/10/20 04:19 PM.
I have two unwritten rules:
1.
2.
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Re: 300BO Load Advice
[Re: Dub32]
#8005066
10/10/20 04:35 PM
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Joined: May 2011
Posts: 1,987
TAB
Pro Tracker
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Pro Tracker
Joined: May 2011
Posts: 1,987 |
Be careful with that h110, it likes dense hot loads, don’t light load it..
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Re: 300BO Load Advice
[Re: Dub32]
#8005323
10/10/20 09:21 PM
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Joined: Nov 2011
Posts: 153
Dub32
OP
Woodsman
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OP
Woodsman
Joined: Nov 2011
Posts: 153 |
Thanks for the feedback everyone. Appreciate it.
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Re: 300BO Load Advice
[Re: ChadTRG42]
#8006738
10/12/20 12:52 PM
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Joined: Nov 2011
Posts: 9,935
unclebubba
THF Trophy Hunter
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THF Trophy Hunter
Joined: Nov 2011
Posts: 9,935 |
The 125 Sierra SP Pro Hunter bullet will expand VERY well at 300 BO velocities. The reason why I like any of the 125 grain options, is because you have enough velocity to still get good expansion as well as deep penetration. I've been sent many pictures of game as well as bullets recovered from pigs and deer that show this expansion. Out of a 16" AR barrel, 2250 fps is no problem, and expansion is adequate for the round. I've been loading and selling the 125 grain Sierra SP for years now, and it works very well, and is lower priced than other 125 grain options. It makes a good choice for the 300 BO.
When you get into the 150 grain weights and velocity slows down to around 1900 to 1950 fps and bullets get tougher, that's when I see little to no expansion. The 150 BT had zero expansion on pigs I shot with .308" entrance and exit holes, but pigs still went down. Thanks for the clarification
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