300 Win Mag loading

Chucho23

FNG
Joined
Jan 27, 2017
Messages
33
Location
KS
I’m looking for load info for a 180 grain 300 Win Mag out of a Tikka T3. I’m looking for bullet, powder type and quantity, length... let me know what information you have.
 
Joined
Oct 8, 2019
Messages
2,956
I do not have all of the specifics handy, but my T3X in 300 Win Mag loves the 190 grain Bergers. Velocity is 2900 fps.

At 100 yards, using a bipod with rear rest (sand bags usually), and my quality of shooting for that specific shooting session:
On an "average" shooting day, a 3-shot group is 0.74" outside to outside.
On an "good" shooting day, a 3-shot group is 0.63" outside to outside.
On a "great" shooting day, a 3-shot group is 0.39" outside to outside.
 

ID_Matt

WKR
Joined
May 16, 2017
Messages
1,564
Location
Southern ID
I think a tikka in 300 win mag would be well suited for the 185 classic hunters from Berger. They are designed for the smaller mag boxes.
 

morgaj1

WKR
Joined
Mar 9, 2020
Messages
360
My Tikka likes 180gr Nosler Accubonds with H1000 and 180gr Nosler Partitions with RL22 using load data off Nosler’s website. The AccuBonds shoot < 0.5 MOA and the Partitions shoot 0.6MOA. I use the AccuBond load because of the temp stability of H1000.


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Bucky

Lil-Rokslider
Joined
Oct 30, 2018
Messages
271
Location
Wisconsin
I realize this is the reloading forum however looking for input on a good bullet for a remington 700 .300 win mag; for whitetails i would think the 180 grain Nosler Accubonds should be good; right? Thanks,
 

choovhntr

WKR
Joined
May 5, 2014
Messages
430
Location
Northern CA
I’m shooting 181 hammer hunters over 75.5 grains of 7828ssc. Settled right at 3100 FPS with good accuracy. I’m shooting a cooper and have a little longer mag than the tikka so I can seat further out and get maybe a few more FPS out of it. Gonna switch to rl23 though and see if I can keep the velocity and accuracy while gaining more temp stability.
 

JakeSCH

WKR
Joined
Jun 14, 2020
Messages
1,004
Location
San Diego, CA
I don't have a lot to add since I only shoot coppers out of my 300 WM, but if you want to shoot copper you will need to limit weight to 175 gr class or less because of the 1-11" twist rate on tikka's.

However, I bet that 175 LRX with 79 to 81 grs of H1000 would be a fantastic round. I shoot the 190's out of mine with H1000 but plan on moving over to the 181 gr hammers with RL23 for my fall elk hunt.

I recommend grabbing ADG brass if you can find it.
 
Joined
Sep 23, 2018
Messages
1,943
Location
Santa Rosa, CA
I realize this is the reloading forum however looking for input on a good bullet for a remington 700 .300 win mag; for whitetails i would think the 180 grain Nosler Accubonds should be good; right? Thanks,
I’d feel comfortable hunting anything in North America and most of Africa with that load. Knock em dead.
 
Joined
Jan 18, 2021
Messages
13
I've had great success with 185gr Berger VLD hunters. If I do my job, it will shoot .75 groups all day with the factory barrel. I'm starting to play around with the Accubond LR in 190gr with some success.

H4350 and IMR4350 have been my powders of choice
 

brisket

Lil-Rokslider
Joined
Oct 13, 2018
Messages
196
Location
Texas
I realize this is the reloading forum however looking for input on a good bullet for a remington 700 .300 win mag; for whitetails i would think the 180 grain Nosler Accubonds should be good; right? Thanks,
You don't need an accubond for Whitetail. Any bonded bullet is great, and at 180gr most non bonded bullets are fine. Look at the hornady interbond/interlock, eldx for cheaper bullets
 

rrMT

FNG
Joined
Feb 5, 2021
Messages
17
Location
NW MT
My tikka barrel loved 168gr Berger's and imr4350 shot 180s accubonds well too, didn't care for 200gr eld-x's
 

Marble

WKR
Joined
May 29, 2019
Messages
3,582
26" barrell
180 AB
H4350, 71 grains
Winchester brass
Fed mag primers
Loaded to fit in the mag.

1/2 MOA +
3200 FPS.

I'm not sure what the max load is with the H4350, but I'm either right at or slightly above. Been shooting this load since 2010 or 2011. It's devastating on Elk and Deer into the mid 600s. It shoots very flat and the bullet stays together.

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brushape

WKR
Joined
Nov 13, 2013
Messages
905
Location
rohnert park, Ca
I was started load work up for my tikka 300win the other day and had some strange results with reloader 26 every group was all over the place zero consistency I thought the bullets may have been unstable but switched to h1000 and couldn’t shoot a group over 1” it was pretty amazing the difference in two powders with basically the same burn rate


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Joined
Dec 9, 2018
Messages
342
Location
Northern NY
2 of my 300s liked 70g of h4350 in Norma brass using a 180 accubond. This is a max load according to nosler but in my 2 rifles I had no pressure signs. I tried h4831 but it wasn’t as accurate for me with the 180s. I had success with h1000 once I went to 210 Bergers. 75g was my load for those.
 

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