Question regarding overall lengths with 300 wm

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leadtag101

Inactive
I was thinking of buying a box of ABM ammunition in 300 WM loaded with 230 GRN. Berger bullets. The overall length of this round is 3.600, Will this round fit in my Rem 700 P internal magazine? Does anyone know what the maximum overall lengths you can get away with in these guns typically? If I had a reloading setup naturally I would just create a dummy round to this dimension and try myself.Thanks for any help.
 
Are you sure they are 3.60 inches long? The standard length of the 300 Win Mag is 3.34 inches. Even the 300 Wheatherby Mag is 3.56. It is doubtful they would fit most magazines or even chamber. That seems rather heavy for a 300WM.
 
3.34" is the SAAMI registered max OAL for a 30-06 cartridge.
The 300 Win Mag came much later and copied, as did other cartridges.
There are a lot of magazines built for this 3.34" cartridge length.
When milling out surplus Mausers to take these long cartridges, the inside of the magazine must be more than tolerance longer than 3.34", so that the cartridge can tip on one edge of the base, and not get stuck. Ask me how I know:(
 
leadtag101,

Some of the Berger VLD designs are very long, so it is possible to build a cartridge that long with one, and the long taper of the VLD ogive will still let it chamber. It will not, however, fit in most magazines, and will have to be loaded singly.

.223 Rem shooters run into the same thing with the Sierra 80 grain match bullet. It has to be loaded a little longer and loaded singly to get maximum powder space for best velocity. It's just the sacrifice you make for getting the high ballistic coefficient.
 
Yep, this bad chicken is indeed 3.6 inches long overall length, go to ABM ammunition website yourself and read the specs on this round. Bet its a shooter,I guess if I have to single round these so be it. I loaded a 180 grn factory 300 weatherby round in my Rem 700 long range 300 WM magazine for giggles because it measured 3.55 overall length, with what appeared to be .05 leeway from tip of bullet to magazine wall. So I thought it might fit. Owell wishful thinking. Thanks for the input guys.
 
Leadtag,

Not sure I see the problem here. The first step in load development is to establish a sample/dummy round which will function through YOUR action and chamber and can be removed/ejected from the chamber after the bolt has been closed on that test round.

After the over all USABLE cartridge length is established for YOUR firearm and only then, is load development work up begun.

Starting from or close to a recommended starting load level and working up and towards the listed maximum loads will provide you with safe pressures for YOUR firearm with the selected bullet.

In fact, loads can even be safely worked up with the bullet touching the lands, again providing the load is properly "worked up."

Book listings for cartridge over all length are only a starting place as YOUR firearm may or may not have a longer magazine or throat.

Crusty Deary Ol'Coot
 
Leadtag,

While I have not used the bullets you speak of, I have owned a number of 300s including the currently owned a 300win mag.

Those rifle have including 3 bolt actions and one RUGER #1 that my son currently owns.

At to cartridge over all length, well on the RUGER you could seat bullet waaaaaaay out! while on the bolt guns I needed to go through the testing process to get that length established.

Currently own a RUGER HawkEye that is a very accurate rifle along with giving GREAT velocities from it's 24" barrel.

Typically I find there are at least three groups of rifles as per velocities. The largest of the three, also being the slowest, many times falling short of published velocities by 2 - 300fps.

Next group and smaller by number are those rifles that come close to published figures while the smallest group are those that easily meet or exceed published velocity figures all while staying within published guide lines and showing no signs of excess pressures.

Lots of good cartridges out there, one of which is the 300 Win Mag.

Have a great day!

Crusty Deary Ol'Coot
 
Question regarding overall lengths with 300 wm
I was thinking of buying a box of ABM ammunition in 300 WM loaded with 230 GRN. Berger bullets. The overall length of this round is 3.600, Will this round fit in my Rem 700 P internal magazine? Does anyone know what the maximum overall lengths you can get away with in these guns typically? If I had a reloading setup naturally I would just create a dummy round to this dimension and try myself.Thanks for any help.
Click to expand...

So what does wm or WM stand for? Winchester magnum or Weatherby magnum!?


Yep, this bad chicken is indeed 3.6 inches long overall length, go to ABM ammunition website yourself and read the specs on this round. Bet its a shooter,I guess if I have to single round these so be it. I loaded a 180 grn factory 300 weatherby round in my Rem 700 long range 300 WM magazine for giggles because it measured 3.55 overall length, with what appeared to be .05 leeway from tip of bullet to magazine wall. So I thought it might fit. Owell wishful thinking. Thanks for the input guys.
Click to expand...

To confuse us further the above post mentions Weatherby magnum. Welcome to the forum, but be precise. Over use of abbreviations will get you in trouble.
 
Yes, Abbreviations ----------------

If everyone would pick up the habit of doing something like the following if they happen to be speaking of. for example, a Wide Flat Nose cast bullet. ------

----------- I really like the Wide Flat Nose (WFN) cast bullet in the 45/70. You don't need warp velocities as the WFN is simply a very effective design. The large meplat of the WFN simply gets er done! -----------------

Texting is not helping the situation, but I have no problems with abbreviations providing the poster makes it clear right off what that abbreviation stands for.

I took WM to mean Winchester Mag, but Snuffy could be correct in that it might just as well mean Weatherby Mag.

Guess it is up to the original poster to clarify that question.

Crusty Deary Ol'Coot
 
Sorry Gentlemen, I meant 300 Win Mag, I have a box of 180 grn 300 weatherby ammo That I measured and it measured 3.55 I believe so knowing that and knowing that the ABM 300 win mag ammo with 230 grn Burger bullets that I might buy measured 3.6 Overall length, I stuck the weatherby cartridge in my Remington 300 Win Mag magazine just too see how much wiggle room there was available and it looked like there was about 50 thousandths worth left. I will obviously load single round only if I have to.
 
Leadtag,

I'm sure I must be telling you what you already know, but the 300 Weatherby will not chamber in the 300Win Mag chamber.

One of the big pushes when the Win Mag came out, was it's being able to be used in a shorter 30/06 length action while the 300 Weatherby and 300 H&H take the longer "Magnum" length action.

I believe that Remington used the "06" length action for the 300 Win Mag, although a 300 Win Mag could be chambered and likely operate in the longer action.

If this was done, the manufacture many times would use a shorter, cartridge appropriate magizine in the longer action. This was done when the "06" length actions were used for shorter cartridges such as .308, .245, 22/250 etc.

I am assuming that the barrel of your rifle is stamped, 300 Winchester Magnum. Correct?????

IF it should be stamped 300 Weatherby Magnum, because of the belt and providing the 300 Win Mag cartridge chambers, it likely will - it will likely fire.

However, even though it fires, the case is not long enough to fire form to the Weatherby cartridge, but it would open up resulting in a case with a Weatherby shoulder and a VERY!!!!!!!!!! short neck, making it unusable for further use.

What is "ABM" ammo?????????

Anyway, I at least am a bit confused when you indicate you have placed a Weatherby cartridge in a 300 Win Mag rifle.

Confusion comes easy for Ol'Coots, help me out here.

Crusty Deary Ol'Coot
 
I would never attempt to chamber the weatherby round in the 300 win mag, lol. Sorry I'm batting a hundred here:) I was merely trying it in the mag only on the 300 win mag for a OAL comparison to the 3.6 OAL of the ABM factory ammo (APPLIED BALLISTICS MUNUITIONS) BRAND that I was thinking of buying to see how much room was left from tip of bullet to magazine wall.
 
Everyone knows the Weatherby has radiuses, then there is the difference in lengths from the shoulders to the case heads. Straight-a-way there is .102" difference in the two lengths meaning the Weatherby case will hold the bolt off .102" when there is an attempt to chamber the Weatherby case in the Winchester chamber.

That means nothing to anyone but me.

F. Guffey
 
However, and I don't have a Weatherby to try this in, but it is a possibility that a 300 Win Mag cartridge will chamber in a Weatherby chamber, which is what I was speaking of, not the reverse of which you speak.

Crusty Deary Ol'Coot
 
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