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Author Topic: Browning BAR: Best cartridge: 300 WSM or 300 Win Mag?  (Read 4442 times)

Offline Goofycat

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I plan to purchase a Browning BAR for larger animals, and have narrowed the calibers down to 300 WSM or 300 Win Mag, after having talked to a very knowledgable friend and gun store owner who recommended the 300 WSM. I plan to shoot pigs and bear, with occasional deer or pronghorn hunting at longer distances. I realize that the BAR would hold one less cartridge in the clip than would the Win Mag. This is not an issue. I plan to look for the Safari model without the BOSS.
Barry


Offline jthyttin

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Browning BAR: Best cartridge: 300 WSM or 300 Win Mag?
« Reply #1 on: 06:15 AM, 08/24/09 »
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  • I would consider only reliability. Don't know which is worse, short stubby 300WSM or magnum belt in 300WM. I'd say 300WM is tried and true in BAR and pick it.

    Offline Flybuster

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    Browning BAR: Best cartridge: 300 WSM or 300 Win Mag?
    « Reply #2 on: 01:05 AM, 08/28/09 »
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  • I've had a 300WM BAR W/Boss for almost 10 years, though I don't shoot it much anymore I took it out last summer and it surprised me. I have the stuff to reload for it, but took some factory ammo out while I was testing some other guns. I shot a 3-5/8' 3 shot group at 762 yards while sighting it in after sitting in the safe for years, this done with 180 Rem coreloks.

    Its a nice hunting rifle, but it is heavy. Remember the whole selling point of the 300WSM was to have long action performance in a short action,faster bolt cycling), which means nothing in a semi-auto. So go for the horsepower of the 300 Win Mag.  



     


    Offline Goofycat

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    Browning BAR: Best cartridge: 300 WSM or 300 Win Mag?
    « Reply #3 on: 09:03 AM, 08/28/09 »
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  • If I purchased a 300 Win Mag, would I have to buy one with a BOSS to help handle recoil? Since muzzle breaks are noisy, what is the BOSS CR all about? I have seen them on websites, but I haven't been able to find an explanation as to what they do, other than act as a substitute for the actual BOSS muzzle break. Is the BOSS CR an accessory offered by Browning? I saw nothing in their catalog about it, and can't find it in any of the catalogs.

    As far as the BOSS goes, I have read pro and con about it. Is it really necessary for a rifle that will not be used on the rifle range, other than for sight-in purposes? Since I doubt if I will ever shoot black bear or elk, why not just use a .270 BAR without a BOSS? Because of greater accuracy? I just shot about 15 rounds at the range with my bolt-action .270. The recoil is not over-the-top with the bolt action, and if I purchased a BAR in .270 I could reload for both rifles, using the same die, and alter only the bullet seating depth, die settings and maybe the powder charges, plus have the advantage of using the same brand of bullets I use in the bolt-action Remington,at this time, Nosler Partitions and Accubonds).

    So....what's your advice? Go for the .300 Win Mag with or without the BOSS, or stick with the .270 BAR,with or without the BOSS)? Keep in mind that if I went with a .300 Win Mag, I would expect the rifle to easily reach out to 300 yards with some good accuracy....
    Barry

    Offline memilanuk

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    Browning BAR: Best cartridge: 300 WSM or 300 Win Mag?
    « Reply #4 on: 10:16 AM, 08/28/09 »
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  • The BOSS isn't just a muzzle brake... it's essentially a barrel tuner that comes in either a ported version,brake) or un-ported version,the CR), intended to allow you to tune the gun to the load, instead of the other way 'round.

    Offline Goofycat

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    Browning BAR: Best cartridge: 300 WSM or 300 Win Mag?
    « Reply #5 on: 12:36 PM, 08/28/09 »
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  • Do the positives of the BOSS outnumber the negatives. I.e., is this really something that justifies paying the extra bucks to have on the rifle? In other words, if the BOSS were to improve groups at, say 200 yards by 1/4 inch, to me I would just save the money, unless the BOSS really also acts to reduce recoil dramatically.
    Barry


    Offline Flybuster

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    Browning BAR: Best cartridge: 300 WSM or 300 Win Mag?
    « Reply #6 on: 08:20 PM, 08/28/09 »
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  • Barry, big game rifles do not require super tight groups. A tuner/Boss/CR is to help the person who actually does want to squeeze the best groups from their rifle. It takes some experimentation to find the best setting for a Boss for your given load. If you plan to practice with this rifle more than an average hunter a BOSS/CR would be beneficial to a degree.  

    As for reloading, the dies you have already may not work. Semi-automatic rifles require Full Length Small Base dies, which size brass to SAAMI specs just like factory ammo. Otherwise resized brass may have problems with brass fitting into your chamber.  

    Offline Goofycat

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    Browning BAR: Best cartridge: 300 WSM or 300 Win Mag?
    « Reply #7 on: 08:59 PM, 08/28/09 »
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  • Flybuster, do you mean that the 'small base' dies are different specs than the .270 dies used for the bolt action? I had read something about these dies, but don't understand the difference. Does this mean that factory cartridges I would ordinarily buy for the bolt-action .270 wouldn't fit in a BAR? I thought they were all the same. I mean, it is no problem for me to reload with different dies, I was just curious as to why they are required for the BAR.

    As far as accuracy goes, anything within 1 1/2 or 2 inches MOA would suit me fine, unless I am advised differently.

    One more thing: Does the BAR feed cartridges such as Nosler Accubonds with plastic tips without knocking off the tips during cycling a new cartridge?
    Barry

    Offline Flybuster

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    Browning BAR: Best cartridge: 300 WSM or 300 Win Mag?
    « Reply #8 on: 11:38 PM, 08/28/09 »
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  • Factory ammo will absolutely work, the small base FL die will make your ammo the same dimensions as a factory round. Regular FL dies that aren't small base do not size the case diameter down as much, so it will be wider and have more friction going into the chamber. SB dies are just so a semi-auto rifle feeds better.

    I can't tell you about plastic tip bullets in your rifle, I have never shot them in mine.    

    Offline jthyttin

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    Browning BAR: Best cartridge: 300 WSM or 300 Win Mag?
    « Reply #9 on: 04:17 PM, 08/29/09 »
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  • Don't know about pigs, since I only shoot Russian wild boars. But for them, I'd opt for 30-06 instead of 270. And you can always load 300WM down to 30-06 level.

    Try to think BOSS as an alternative to realoading. If you shoot only factory ammo, you *may* be able to reduce your group size with BOSS. If you reload, you *should* be able to do the same by tweaking your reload.

    MOA is a measurement of angle. One MOA is approx. one inch at 100y. So at 200y, it's 2 inches. If you're going to shoot BAR at 300y, I'd say your shooting ability is more limiting factor than a tuned load,by BOSS or reloading).

    I'm neither saying that BAR is a tack driver, nor you're bad shooter. I've just seen,and taken) too may shots in hunting situation. If you're leaning into medium/long range hunting, get to know your gun and your come-ups at range,300y is considered medium range, if even that, by LR hunters).

    Offline oregonshooter

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    Browning BAR: Best cartridge: 300 WSM or 300 Win Mag?
    « Reply #10 on: 09:21 PM, 09/04/09 »
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  • Quite a jump from the 300 winmag  to now a 270. If you are buying another 270 why a Browning auto? I used browning autos for years in 270 and 30-06 to shoot deer that were often being pushed. Sometimes my first two shots just scared them and I got serious on the third. It's easy to do when you can stay in the gun. I love them but if I need a 300 Winchester it's because I need stopping power. If you need stopping power get a 300 and not one of those silly short magnums.  Biggest joke they have sold the gun buying public in quite a few years.

      Look...  a .270 will kill the biggest pig that has ever walked gods earth at 300 yards if shot in the right place. The Bars I had all had plenty of accuracy to do that. The boss thing is great if you do not reload as it can help you to 'Tune' factory loads for your barrels vibration patterns. If I was going to give up the reliability of a bolt action and the out of teh box accuracy and fairy decent triggers that can be had.

       I would need to gain something. a bar in .270 you 'gain nothing' You now have another 270. why not just kill pigs with the 270 you got? If you want a bigger gun the Browning in 300 win Mag with the boss is an accurate rifle that has less recoil then a 308. DO you need a 300 WIN MAG? If not just kill pigs! MY father in law wacked a 300 pounder the last time I hunted with him with his 270. 1 shot about 250 yards. he was shooting 130's. Good luck. Jeff

      P.S have your gunshop owner show you on paper why the 300 Sortmag is so hot?

      Most of the velocity they show is out of 24 or 26 inch barrels. Remember to take off  50 FPS for barrel length. That 300 short mag doesn't look so hot out of a standard 22 inch barrel because  once you drop off that 100 to 2000 FPS the whole thing looks like a reason for Remington and Winchester to sell people another gun that everybody 'Must Have'. The truth you won't see in the write ups. Jeff
    I support the  USA  Waterboarding team!

    Offline oregonshooter

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    Browning BAR: Best cartridge: 300 WSM or 300 Win Mag?
    « Reply #11 on: 09:26 PM, 09/04/09 »
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  •  If you are going to pick on Black bears a 300 win mag would be nice to have but your .270 will still wack the hell out of an average black bear. I wouldn't go picking on Grizzly Bears with it but then I wouldn't pick on Grizzly Bears with anything smaller then a 375 HH. Good luck with your choice. Jeff
    I support the  USA  Waterboarding team!


     

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