About to bob a Remy 300 rum- Talk me into something else


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klover
January 25, 2012, 06:11 PM
I would like something handy for a multi-day dirt bike ride through the Rockies in Idaho and Montana.

It would be nice to backup the bear spray with something around 4,000 # of energy, and I am trying to avoid spending money.

I have an sps I would like to cut to 16 inches. What would this do to something like a 245 grained bullet that would normally go 2,875 fps at the muzzle? Would the recoil increase due to less length, or would it increase?

And yes, I have read a million bear threads.

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GIJOEL
January 25, 2012, 06:32 PM
less weight = more recoil. And you could loose 50fps per inch of barrel cut if I remember correctly. I think you may want to consider hacking down somthing cheaper, 12ga? Mosin Nagant? Cutting down the remington will likely result in a rifle that is inacurate and difficult to use. I would want open sights for bears anyway.

Kachok
January 25, 2012, 07:05 PM
16" 300 Ultra Mag!! Forget hitting the bear the muzzle blast alone will scare off anything in the tri-state area LOL. A sawed off 300 magnum would make it pointless, try tradeing for a 44 mag or something. 4,000 lbs of energy is not needed even for the largest bear, just use a high powerd handgun and get some deep penatrating heavy hardcast bullets, the world record polor bear was taken with a 44 mag.

rcmodel
January 25, 2012, 07:45 PM
Forget hitting the bear the muzzle blast alone will scare off anything in the tri-state area LOL.+1
And you won't even be able to use it in dry/windy conditions.
Starting Forest Fires is a no-no you know!

In all?
That has got to be the worst idea I have seen on THR recently.

If you want a short light bear stomper, get a Marlin 45-70 Guide-Gun, or a 12 ga pump shotgun with slugs.

Unlike a 16" 300 RUM?
You might still be able to hear, and still see in dim light after touching off one round.

rc

Abel
January 25, 2012, 07:53 PM
300 Ultra????? What the? Just get a 12ga with an 18" or 20" smooth bore, open cylinder choke and load some KO slugs.

http://www.brennekeusa.com/cms/fileadmin/BrennekeUSA/Hunting/user_upload/Produkte/KO-12-20.jpg

LoonWulf
January 25, 2012, 09:25 PM
Im with the NO!!! crowd. As they say, stumpy pump gun with slugs, short 45-70 carbine....or .338, or .35 bolt gun would be my choices. Hell a stumped nagant or other .30 cal carbine loaded with hot 180-200s would be a better choice then the RUM IMO LOL.

Kachok
January 25, 2012, 09:51 PM
The RUM is WAY too overbore for a 16" tube, heck a 308 is too hot for a 16" IMHO I like a 18" min for them. Ultra mag speeds are simply not needed for close range bear encounters. I agree that a large cal lever gun or 12ga slug will have every bit as much stopping power if not more, and they won't leave you flash blind and deff after the first shot LOL. Just remember you want penatration though the vitals not energy dump, so think controled expansion/hardcast not hollow point/ballistic tip

jnoble87
January 26, 2012, 08:17 AM
16" 300 Ultra Mag!! Forget hitting the bear the muzzle blast alone will scare off anything in the tri-state area LOL.

Why do I invision this scene from the movie The Great Outdoors?!

http://www.youtube.com/watch?v=OBJ-MpPBDug

hardluk1
January 26, 2012, 08:31 AM
Buy yourself a pump action slug gun and check out the different dupo slugs. http://www.ddupleks.lv/EN/ddupleks_products/show/Monolit32

LeonCarr
January 26, 2012, 09:00 AM
Remington 870 or Mossberg 500 loaded with Brennekes. Lighter, more frontal area on the slugs.

Cutting 10 inches off a .300 Ultra gives about the same performance as a standard barrel .30-06.

Just my .02,
LeonCarr

natman
January 26, 2012, 12:13 PM
I often advise that if you have to shoot a bear in self defense without tags / out of season, he'd better have powder burns on his fur.

That won't be a problem with a 16" barreled 300 RUM. He'll be dead, skinned and cooked anywhere within 25 yards.

Seriously it's a really bad idea. A cartridge like that needs a much longer barrel.

JCinAK
January 26, 2012, 12:37 PM
Remington 870 or Mossberg 500 loaded with Brennekes. Lighter, more frontal area on the slugs.

Cutting 10 inches off a .300 Ultra is about the same performance as a standard barrel .30-06.

Just my .02,
LeonCarr
Second that.

When I'm in bear country, I usually carry my Mossberg 500 with Brenneke Black Magic. http://www.brennekeusa.com/cms/blackmagic.html

I have a 300 Wby and a 30/06 carbine. I would pick the 30/06 carbine before the other. Cuttin down the barrel of a magnum eliminates the benefit of the extra powder. All you get is a lot more noise.

Certaindeaf
January 26, 2012, 12:50 PM
.I am trying to avoid spending money..
Pawn it and instead of taking all money, horsetrade for a cheap slug gun and some cash. When you're done with your three day ride, you should be able to get your rifle back with no money really leaving your pocket. Just a thought.

Mike1234567
January 26, 2012, 02:02 PM
What's wrong with a good old .30-06? Or maybe an Ackley Improved version that'll also shoot standard '06 ammo? Find an '06 AI with 1:9 or faster twist and you can shoot anything from 110gr BT varmint rounds to 250gr big brown bear killers.

Certaindeaf
January 26, 2012, 02:49 PM
^
He might not have one of those in his closet. See above. It seems he has a hacksaw though.. not that there's anything wrong with that.

klover
January 26, 2012, 03:29 PM
very light and small. As I mentioned all the above suggestions have crossed my mind except I tend to think something weighing 5 lbs. max would be nice, not to mention that very short is nice too.

I bet a .22 has taken a Polar bear before. Would you volunteer to sleep with just that next to you in grizzly country?

I own some of the suggested weapons all ready, and was planning to take a
454 Casull raging bull revolver and a Puma 16 inch in the same caliber. It would be nice to have more power and less weight than the carbine since I would likely only get off one shot. Just thinking the flash could help deter these guys that do not need vitals because they do hibernate.

Thanks for the suggestions, and keep them coming!

I really loved the video! What a nice chuckle!

Woodyard
January 26, 2012, 04:20 PM
Why take a fine big game rifle and turn it into a worthless piece of junk? If you have that .454 Casull, you will be better armed than most people in bear country. If you really want something else, sell the rifle and buy a pump shotgun or whatever else tickles your fancy. By the way, that .300 RUM (in its unaltered state) would be great for bear HUNTING sted of bear defense.

AK_Maine_iac
January 26, 2012, 04:46 PM
You may not want to spend any more money. But if you cut down the 300RUM it will be ruined. Just take the amount of cash you payed for it and flush it down the toilet, or buy a used Rem 870 12 ga. shorty for 200.00. That way you will have TWO good firearms.

klover
January 26, 2012, 04:47 PM
I have a pump 12 ga, but it is NOT small and light. I am considering the Serbu Shorty. Or a 10 gauge single shot, bobbed. Shorter and lighter than the carbine because the dirt bike has little carrying capacity beyond food, fuel, water, etc.

My collection has much that would hunt Yogi the bear.
These hunts would be at a distance, no doubt. I would rather eat popcorn than smoke ol' Smokey.

It's just that I hate tents, and Smokey might be hungry in the late Summer. I believe
in self-care. Think only defense please.

Thanks, everyone.

Woodyard
January 26, 2012, 06:47 PM
Bring along somebody you don't like and dip him in rancid kitchen grease. While the bear is eating him, you can hop on the bike and beat it. Just kidding of course.

hardluk1
January 26, 2012, 08:03 PM
You do not have agood selection of slugs for a 10 ga and most 12ga can produce more energy with a heavy 12ga slug any how plus recoil is harsh enough with a 10ga it hurts follow up shots. The little serbu shorty as way better with buck shot as it need to be aimed and that is not its thang. Take the 454.

Abel
January 26, 2012, 08:06 PM
Seems like you've already gathered all your knowledge. Enjoy your _______.

klover
January 26, 2012, 10:45 PM
There is not enough time in life to learn all about firearms.
It's down to the 454's unless I get a 500 S&W revolver for a very good price.
Anyone want to trade for a 300 Ultra Mag?

Damon555
January 26, 2012, 11:18 PM
The RUM is WAY too overbore for a 16" tube, heck a 308 is too hot for a 16" IMHO I like a 18" min for them.

Forgive me if I misunderstood but what does barrel length have to do with a cartridge being overbore?

I'm with the 12 gauge shotgun crowd on this one....but hopefully you'll never need it.

56hawk
January 26, 2012, 11:48 PM
Forgive me if I misunderstood but what does barrel length have to do with a cartridge being overbore?

In an overbore cartridge like the 300 RUM there is a lot of gunpowder being burned compared to the bore area it has to expand into. Because of this the pressure in the barrel stays high and has a greater effect on the bullet velocity per inch of barrel. Some overbore cartridges like the 22-250 can lose up to 40 FPS per inch of barrel while straight wall cartridges like the 45-70 will lose less than 10 FPS per inch of barrel. On the extreme end pistol cartridges fired in rifle length barrels will sometimes have lower velocity than when fired in pistol length barrels because the barrel friction becomes greater than the pressure of the expanding gas.

Damon555
January 26, 2012, 11:58 PM
In an overbore cartridge like the 300 RUM there is a lot of gunpowder being burned compared to the bore area it has to expand into. Because of this the pressure in the barrel stays high and has a greater effect on the bullet velocity per inch of barrel. Some overbore cartridges like the 22-250 can lose up to 40 FPS per inch of barrel while straight wall cartridges like the 45-70 will lose less than 10 FPS per inch of barrel. On the extreme end pistol cartridges fired in rifle length barrels will sometimes have lower velocity than when fired in pistol length barrels because the barrel friction becomes greater than the pressure of the expanding gas.

I'm not sure I follow....does that mean a 26" barreled 300 RUM is less overbore than a 16" barrel version?

I was lead to believe that being overbore was a product of bore diameter and cartridge capacity not barrel length. Say 2 calibers based on the same cartridge like the 308 and the 243 whereas the 243 would be more overbore than the 308 because of the smaller bore diameter.

Have I been misinterpreting this all these years?

56hawk
January 27, 2012, 12:13 AM
I guess I misunderstood your question. Overbore is a relationship between powder capacity and bore area. Barrel length is not part of the equation. A 300 RUM will still have a higher muzzle velocity out of a 16 inch barrel than a 308 out of the same length barrel. It's just usually seen as a waste because you are burning a lot of extra powder (more recoil and muzzle blast) for a small increase in velocity.

Damon555
January 27, 2012, 12:27 AM
I guess I misunderstood your question. Overbore is a relationship between powder capacity and bore area. Barrel length is not part of the equation. A 300 RUM will still have a higher muzzle velocity out of a 16 inch barrel than a 308 out of the same length barrel. It's just usually seen as a waste because you are burning a lot of extra powder (more recoil and muzzle blast) for a small increase in velocity.

No problem....I was pointing this out to the gentleman who originally posted about barrel length having anything to do with a cartridge being overbore. I was pretty sure that was an inaccurate statement on his part.

Just to keep this on topic back to the OP.....there is plenty of time in life to learn about firearms. Experience is by far the most enjoyable way to go about it. I bet your knowledge of motorcycles is extensive. No reason you can't be a super duper gun buff too! :)

KevininPa
January 27, 2012, 10:58 AM
.......good with the 454. Compact with six fast shots. Otherwise, take your pump gun. Or buy a mosin M-38, cheap short carbine in a hard hitting round. Little heavier than you want though, unless you buy one of those after market synthetic stocks. Or get the M-44 so that you have a foot of bayonet spike for the last ditch "get off me you filthy beast" factor! :D

klover
January 27, 2012, 02:58 PM
Weld a bayonet lug on the bobbed 300. One shot shish kebab griz defense:p.


Seriously, thanks for lots of learning in trying to achieve the light, short, and powerful quest. If the 500 and 460 Smith and Wesson Hunters weren't so pricey, I would rate them above the Casull's I will probably use.

Odd's are good that this trip will be followed by a great many more. Hopefully, I can round up other folks to join me, but high unemployment in that area prevails. The early history of the Northwest is a fascinating read.

Certaindeaf
January 27, 2012, 03:32 PM
.The early history of the Northwest is a fascinating read.
For true. I think they used a hatchet and they all lived. Good times!

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