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300 win mag dilemma
- Thread starter JtfIII%
- Start date
For reaching out there you might want to consider 208 AMax or Berger 210 VLDs or 220SMK or something like that with a 1:10 twist. I run the 208 in my 300 Win Mag. Leave the 168s to the 308s. For barrel length I suggest at least 25".
168's are pretty pointless in a 300WM, if they will do what you want then you can accomplish the same goal with another caliber and a lot less powder.
I'd go no less than the 208 AMAX in the 300. 210, 215, and 230 Bergers, and 225 hornadys are all great choices.
I'd go no less than the 208 AMAX in the 300. 210, 215, and 230 Bergers, and 225 hornadys are all great choices.
I had a Savage 112 BVSS in 300 WM with a 26" barrel (I have since switched to a 30" barrel). The best load I found with Accubonds 200grs was 80.5 grs of H-1000(hot) and CCI 250. I got 2935 fps and it would hold 1/2 MOA (3 shots) to 600 yards. My OAL was 3.509" so I used that load single shot.
A few years ago I shot a moose at 504 yds (measured with Leica CRF 1200). The bullet entered behind the right shoulder blew off the top part of the heart and exited through the left shoulder. The moose dropped on the spot . Here's a photo:
A few years ago I shot a moose at 504 yds (measured with Leica CRF 1200). The bullet entered behind the right shoulder blew off the top part of the heart and exited through the left shoulder. The moose dropped on the spot . Here's a photo:
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Used 190 in my Steyer 300 win mag, worked really well. But as the others have pointed out, poking at those distances you might want to run some numbers on the heavier weights still.
Check out the ballistics on the 208, even at 2400-2500fps (my 308) it's good to like 1100 yards or something where I'm at.
I had a .338 Lapua but it was eating my wallet alive. So I got to looking at the ballistics of the 230 Berger at a fast velocity. Ended up building a rig on a trued 700 action with a Broughton 5c 1:10 I'm an AICS. Jewell trigger and a Bushnell XRS. It shoots the 230 at 2900 and is literally like a bench rest rifle.
I'm actually building a .300 Win Mag right now with the intention of shooting 168 SMKs.
After some discussion, Boots Obermeyer suggested a 1 in 13, so I currently have him making me a 26" blank, but I'm not sure what length I am actually going to finish at.
Also, everyone in this thread is correct in that heavier bullets are easier to stretch out with. You definitely wanna think about why you wanna throw the 168s.
After some discussion, Boots Obermeyer suggested a 1 in 13, so I currently have him making me a 26" blank, but I'm not sure what length I am actually going to finish at.
Also, everyone in this thread is correct in that heavier bullets are easier to stretch out with. You definitely wanna think about why you wanna throw the 168s.
I had a Savage 112 BVSS in 300 WM with a 26" barrel (I have since switched to a 30" barrel). The best load I found with Accubonds 200grs was 80.5 grs of H-1000(hot) and CCI 250. I got 2935 fps and it would hold 1/2 MOA (3 shots) to 600 yards. My OAL was 3.509" so I used that load single shot.
A few years ago I shot a moose at 504 yds (measured with Leica CRF 1200). The bullet entered behind the right shoulder blew off the top part of the heart and exited through the left shoulder. The moose dropped on the spot . Here's a photo:
Nice Moose! Where was this? Just curious, how does Moose taste?
I have a 26in Krieger 1:10 twist shooting the 208 AMAX and 210 Bergers over 2900fps. It's a bug hole hammer.
You can go with any length you like. I like a 26 because I feel it gives a large charges of Retumbo time to burn. The 168 is a short range round. Just guessing here but my guess is that you are going to be subsonic at 1000 yards. That is not what you want, you need something slippery that cuts the air like a knife. Look at the heavier bullets for 1000 yard shooting.
Not looking to hijack, but has anybody here had good experience with the 220 SMK? Not as hot as the Mk248 Mod1...the reason I ask is I'm just getting into the win mag caliber and ordered some from Southwest Ammo. The barrel is a Krieger 1:10 28".
I have a similar setup...
Bartlein M24, 24 1/4in, 1:10 -- I shoot anything 208+ really. 208/220...I average 2960fps...
A hammer is definitely an apt description.
I will be chopping my barrel back to 24in next month, but only cuz I will be running a suppressor on it. I should be able to retain all my MV though with the can on.
I've shot the 208's at 2950 and the 168's at 3175 at 600 yards at the same steel plate on a stand. It just wabbled with the 168's but flipped over when hit 2x back to back with the 208's. Running light bullets in a win mag is like buying a Ferrari to drive the speed limit.
I'm in the same boat, actually...I bought a Surefire 762 RC around the same time that I started building the Win Mag...
Can't wait to throw it on there...So excited!
i agree with redneck the 300 is good for moving heavy 180+ bullets. if you are looking at the 168gr bullet weight get yourself a 260 and call it a day, half the recoil, double barrel life and will shoot flatter and buck wind better than the 168 by 30% if not more.
if you are going the 300 win mag route, start off the with tried and true winchester brass, IMR 4350 67.5 gr, mag primers and 200gr SMK. very forgiving for seating depth (unlike bergers and some scenars) and will out shoot the shooter. there are a few better bullets and some guys like H1000 powder, but as a whole this load shoots in almost every gun. held the record for a looong time of 2.6" at 1000 (or something like that) by skip talbot.
if you are going the 300 win mag route, start off the with tried and true winchester brass, IMR 4350 67.5 gr, mag primers and 200gr SMK. very forgiving for seating depth (unlike bergers and some scenars) and will out shoot the shooter. there are a few better bullets and some guys like H1000 powder, but as a whole this load shoots in almost every gun. held the record for a looong time of 2.6" at 1000 (or something like that) by skip talbot.
Agree... I always wonder why it's so hard to find 190 plus Gr ammo... Seems like all I ever see is 150?!?!? who shoots that stuff??
never tried SW ammo, seen some reviews and some love it and some not so much. if you are looking for factory stuff go get some federal 190gr SMK, its the benchmark for a reason.
1-10 is perfect with a 300, and 28 allows you to shoot it out (about 1500 rounds) and have it set back. you will still have a 25-26" barrel which is fine for a 300 wm.
more important than the actual bullet is reading the wind. with the 300 wm you can get well past 1000, out that far wind is the deciding factor. all the ballistic calcs and charts show the drop (thats the easy part) but none show you what to do when you have 2-3 different wind zones going different directions at different speeds, the best bullets in the world can't fight strait through that.
too many guys spend time working up loads and not putting rounds down range, not saying that getting a good load with a low FPS variation is a waste (20-30 FPS at a 1000 will move the bullet up or down a few clicks/inches) but having a bug hole round doesnt help if you are dialing in right wind and it is really left wind.
1-10 is perfect with a 300, and 28 allows you to shoot it out (about 1500 rounds) and have it set back. you will still have a 25-26" barrel which is fine for a 300 wm.
more important than the actual bullet is reading the wind. with the 300 wm you can get well past 1000, out that far wind is the deciding factor. all the ballistic calcs and charts show the drop (thats the easy part) but none show you what to do when you have 2-3 different wind zones going different directions at different speeds, the best bullets in the world can't fight strait through that.
too many guys spend time working up loads and not putting rounds down range, not saying that getting a good load with a low FPS variation is a waste (20-30 FPS at a 1000 will move the bullet up or down a few clicks/inches) but having a bug hole round doesnt help if you are dialing in right wind and it is really left wind.
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I shoot 200gr SMKs, 72.5 gr RL22 for 1000 yard F Class with great success, but really the 208 A Max with the same load is good for a mile and the same price from my local shop.
Slower, but more slippery.
I will more than likely just stick to the A Max next year.
Oh, yeah... 11.25 twist, 26" Rock Creek Barrel with almost 2000 rounds through it! (thanks GAP)
Slower, but more slippery.
I will more than likely just stick to the A Max next year.
Oh, yeah... 11.25 twist, 26" Rock Creek Barrel with almost 2000 rounds through it! (thanks GAP)
I am gonna go against the grain and say go short 
My 300wm is 21.5" Broughton 5C and sends 208 AMAX at 2950ft/sec and 225 hornady at 2860 ft/sec. It is all about proper load. I used Ramshot Magnum and it is amazing powder with great velocity. When i used H1000 or Retumbo i was down 100 ft/sec. At 600 yards i was shooting a steel plate that you could cover the splatter with a silver dollar. I dont see any reason for me to go longer than that.
My 300wm is 21.5" Broughton 5C and sends 208 AMAX at 2950ft/sec and 225 hornady at 2860 ft/sec. It is all about proper load. I used Ramshot Magnum and it is amazing powder with great velocity. When i used H1000 or Retumbo i was down 100 ft/sec. At 600 yards i was shooting a steel plate that you could cover the splatter with a silver dollar. I dont see any reason for me to go longer than that.
I am gonna go against the grain and say go short
Yadayada..... Pics or BULLSHIT
I've got my stock and barrel on order. What chamber/throat do you reccomend?
I was thinking about runnning 190/210/215 bergers or 208 AMAX's.
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Yadayada..... Pics or BULLSHIT
Since you asked
Here is a turkey shoot i won @ thanksgivings, 5 shots at 458 yards with the 300wm. Trust me this thing is a hammer at 21.5" !
Nice shooting alpha6164!
I may try Ramshot Mag. I'm routinely hearing about the extra fps.
Blessings
BC
I may try Ramshot Mag. I'm routinely hearing about the extra fps.
Blessings
BC
I really hate to even talk about Ramshot because i think it will just make it more difficult for me to get lol. But honestly it meters like water, i have shot it in 100deg weather in florida down to 30deg and no pressure signs and blows H1000 and Retumbo out of the water when it comes to velocity and accuracy i cant complain one bit.
Since you asked
That my friend is what I call BR shooting. Very well done!
I wonder if the burn rate of Retumbo and your bbl length being short has anything to do with your lack velocity. I mean I would think you'd need a bit faster burning powder for that short a barrel but -100 fps... That's alot. I've got a 30" Broughton 5c 1:10 and with a middle weight load of 76 grains of Retumbo and a 230 OTM in getting 2900 fps and the powder is finishing pushing 2 inches from the muzzle according to QL. But QL also says I should be at 2730 fps.... Those Broughtons will haul ass!!
AWSOME SHOOTING!!!
Thanks and yes i love Broughtons. I know you are happy with Retumbo but if you ever come across a pound of Ramshot Magnum try it. You may be surprised. I was talking to one of Ramshots engineers at the SHOT show and he was confirming how awesome Magnum was (obviously) but he said he personally has compared it to H1000 and Retumbo and matches them on accuracy and beats them on velocity every time.
I too have discovered Ramshot Magnum for my .300 Win Mag and 208 Amax I'm getting 3040 fps with a 25" Bartlein and bugholes for groups.
Wow that is some speed right there. See I am not the only one that is a Magnum believer. With that velocity you have almost identically matched a 338 Lapua shooting 250g pills at 3000ft/sec up to a mile and beyond that the 208amax or 230gr Berger will be buzzing right along not too far behind. This is why I sold my 338 Lapua.
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