Remington 300 RUM

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by baydog, Jan 11, 2014.

  1. baydog

    baydog Well-Known Member

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    Hello everyone. I'm a newbee and have never posted in any kind of forum so if I'm in the wrong section or not doing something right please don't hesitate to yell at me and set me straight:D..Here's what I got going on. I've been hunting and reloading since i was 15 years old and now I'm 50 and still love it and try to keep a open mind and learn as much as I can each year. I live on the Eastern Shore of Va. and do a lot of White tail deer hunting. I have been shooting a Remington Sendero 7mm mag for exactly 10 years this year and highly recommend the Remington Sendero 7mm mag,.. Great gun!! Been loading 65 grains of IMR 4350 with a 140 grain nosler ballistic tip and having good luck with that recipe for a long time but i'm getting bored with the gun and ready to move on to something else. I was really interested in the Sendero STW and really had a hard time convincing my self that this ain't the gun for me because it is getting harder to find these guns in a Sendero each year as well as the brass, plus to me it doesn't seem to be a big difference than what I'm shooting now. So then the 7 RUM was next in line for me but then figured out that the barrel trouble is something I don't want no parts of as much as a Sendero setup cost so that leads me to the Remington 300 Ultra Mag. And thats what I got coming with a Leupold 4-12x50mm firedot ballistic scope...Sooo....good move, bad move or what???...I use the Nosler reloading info and would like to stay wit the IMR 4350 powder and the nosler ballistic tip bullets. The recipe i was thinking of starting with is 90 grain of 4350 with a 125 grain nosler ballistic tip..Is this a good load to start with? I'm looking to shoot as far and accurate as I can.. And is there any kind of break in routine i should go through before I start shooting and trying different loads? Thanks for your time and any help gun)
     
  2. 7magmike

    7magmike Well-Known Member

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    I have a 300 rum sender also and its my favorite and best shooting rifle. I just got me a reloading kit and cant wait to start reloading, need to get some dies. I got a lot to learn.
     
  3. Eaglet

    Eaglet Well-Known Member

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    baydog,

    Welcome to Long Range Hunting!

    This is a great site to learn even more.

    Like you, I have been reloading since I was 17 y/o, at 59 you would think I have learned all there's to it and that'd be far from the truth! :)

    Keeping in mind that I live in the West, and finding game at 400 yards and more is about the rule, I don't use light bullets not even for plinking, :) specially with my 300 RUM...

    In reference to the 300 RUM is just a great cartridge. Can be loaded to shoot like a 30-06 or a 300 Winch. Mag. or just a full blast beast!

    It's all about personal preferences, I personally see no use for a light bullet on my 300 RUM SENDERO, it scares me just to think how much faster my barrel will be toast.

    I started shooting 180 gr. for longer ranges and pretty fast I found out I was just wasting my rifles capabilities.

    Being that this site is for long range hunting, my mind set is for long range and therefore I'm looking at bullets that have very high BC and for that you go to 200 gr bullets, 210 Berger are very popular, 240 gr... etc. The idea is that a light bullet will loose its speed so fast that at long ranges is pretty useless for my use. These heavier bullets with high BC will fight the wind pretty good, which is the toughest thing to control. Vertical adjustment is easy if one has a good external ballistics application but the wind is another story!
    I'm thinking that there are not many places to shoot long ranges in the East... I'm talking ranges over 700 yards and up.

    In any event, 125 grains will work depending on what you'll be using them for.
     
  4. Jud96

    Jud96 Well-Known Member

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    Not a good idea with the load choice, but one of the best rifle choices you can make. The 300 RUM is pointless when you're shooting anything under 180s, even that's pushing it on the light side! You would be better off buying a .308 Winchester if you want to shoot 125 grainers. Also IMR 4350 is too fast for the big .300 RUM, you need a really slow powder like H1000 to take advantage of this cartridge! A 125 would also be inaccurate because your Sendero has the wrong twist for these light slugs, you will burn the barrel up fast, and it will foul super fast! If I were you, I'd load up some good bullets around 190gr or heavier and use a lot slower powder like I mentioned before. This will take the full advantage of the .300 Remington Ultra Mag. You said you wanted to shoot as far as possible, then load up a heavy bullet like I said with a high BC and this will beat the barrel burning 125s any day. I'm sorry if I come off offensive or anything, but I just don't want you too have an excellent rifle and cartridge and not use it to its full potential. I hope this information helps! P.S. Remingtons Rule!!!!
     
  5. Michael Eichele

    Michael Eichele Well-Known Member

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    If you're bored, try a 168 or 180 VLD and really stretch her out there. Going with a 300 rum running 125s is taking a step or two backward. Or three or four. This is about long range here. The 7mm running 168-180 VLDs will eat the 300 rum running 125 alive. If you really want a hammer, step the 300 rum up to a 200+ grain. Less velocity but more retained energy and a lot less wind drift. If you're worried about flat trajectories, don't. Get a laser rangefinder. Trajectories are near meaningless today. Beating the wind is how this game is played.

    Welcome. :)
     
  6. Jud96

    Jud96 Well-Known Member

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    +1 For what Mike says! Mike also mentions trajectories, the heavier bullets will drop a lot less than the 125s once you get past 300 yards so you are really hurting yourself when shooting these light bullets!
     
  7. mtmuley

    mtmuley Well-Known Member

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    Get some 200 grain Accubonds and some RL-25 and Retumbo. You'll find what your rifle likes there somewhere. Those 200 grain Accubonds at 3200 fps are tough to beat. mtmuley
     
  8. baydog

    baydog Well-Known Member

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    Wow!!..This website has got to be 1 of the best tools in my reloading tool box. A lot of good info out there. And please don't worry about sugar coating anything you want to say .I understand that this ain't one of those sites that you're suppose to get a warm fuzzy feeling after reading a thread, speaking what you really want to say and are thinking.. makes me feel like I really got a answer from the gut!! Wouldn't have it any other way!...So i guess the light bullet thinking on my part goes back to the days from loading the old Remington 6mm..I found that the 100gr bullets really turned that gun into a dog .The 70gr bullets as far as being accurate was what the gun really liked and was most consistent groups but didn't have the knock down power that I was looking for so came up with a happy medium and used the 90gr nosler ballistic tips but also so found out that shooting whitetail deer and putting a bullet in the engine room of a deer didn't work to well. I found my self tracking a lot to find the deer. Thank God i had two good dogs that would rather hunt and track rather than eat!!..They were 2 great dogs and worked as a team. One was a Chesapeake Bay retriever and the other was a Cocker Spaniel that had a nose like you wouldn't believe. I always said the Chesapeake cheated Because the Cocker never looked up she always had her nose to the ground and the Chesapeake would always run up the trail loose scent and come back to find that the Cocker had moved up the trail further until the Chesapeake would eventually stumble across the deer..Thats why I called him a cheater..Then i started neck shooting and things got a lot better. I either flat out missed or they were laying in the tracks they were standing in before i shot. But I like to hunt the woods in the morning and the fields in the evening and found out that after 200 yards that neck of a deer turned into the size of a pencil!! And thats what turned me to a 7mm magnum..I shot a lot of guns in between.. like the 25-06 a 270, .308 which my dad swears by and claim there ain't a better gun but when I finally came across the Remington Sendero 7mm magnum, that was the beginning of the Sendero and the 7 mag for me. I could put 1 in the engine room and still find them without a lot of tracking,.. neck shoot and drop them like a rock. This is also what has turned me now to the 300 RUM i'm finding that in the evenings field hunting the average shot starts at 200 yards and probably goes up to 500 yards at the most. So being 50 years old now I find that I just can't see like i could 10 years ago so on longer shots especially when i look up and see big horns on a deer and get all nervered up i find myself going down for the brown and putting 1 in the engine room instead of trying for the neck at 200 yards or more, engine room is a much easier target and again thats where i'm hoping the 300 RUM will step up and still bring them down where they stand. The white tail deer is the strongest animal we have here on the Eastern Shore of Va. I am amazed sometimes just how tough of a animal they actually are and what it does take to make a quick and humane kill. As far as the reloading part goes i think i need to get out of the smaller caliber state of mind and jump into the big boy guns. I think what I'm hearing and trying to understand about the bullet weight is that a lighter bullet comes out of the barrel balls to the wall but looses it's momentum sooner than a heavier weight bullet does. I'm trying to understand this in knuclehead terms and this is how this knucklehead understands it...if a little rock starts rolling down a hill and stops without and obstructions, then you roll a larger rock down the same hill the larger rock is going to roll further down the hill because of the momentum the bigger and heavier rock has...is that sort of kinda right??..I've just got to find a rock that my gun likes best and powder amount which would be the energy used to roll the rock down the hill...Sorry about the knucklehead Hillbilly story but this is who I am and how I can understand it..lightbulb
     
  9. Jud96

    Jud96 Well-Known Member

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    Yes your rock idea is exactly how it works. Haha I like that!
     
  10. AKGuide

    AKGuide Well-Known Member

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    baydog nice story about your dogs and what you hunt primarily. I would suggest for whitetail and the 300 RUM to use either Berger 210 or 215 grain hunting bullet or a 210 Nosler LR accubond for boiler room shots. If you need a little more bullet I would move to a 180 grain swift scirocco or a 200 grain Nosler accubond. I have had great luck with the 240 SMK's on paper and tempted to try on game, but this at times is frowned upon due to it being a target bullet. Powders of choice for the RUM are H-1000, R-25, retumbo, N570, US-869, R-33, and H-50BMG for the 230 and 240 grain offerings. Whichever you decide to load for the 300 you wont be disapointed in its performance. For deer I would a lot of bang flops are in order.

    Reuben
     
  11. baydog

    baydog Well-Known Member

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    Thanks 7mag Mike!..Hunting season is about over with here but I still can't wait until the gun gets here and get started setting the gun up and finding a recipe that will shoot tight groups at 400-500 yards and knock the deer over where they stand!!
     
  12. baydog

    baydog Well-Known Member

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    Thanks for the welcome Eaglet!..I feel the same way you do about the amount of time I have been reloading. By no means do i actually know what I would like to know about reloading and after reading some threads and responses on this website just reminds me on how much i do have to learn!..Like the term BC, To be honest I had no ideal what that means but I think I figured out it means how the bullet slices through the air???..and that a light bullet in the 300 RUM is a wasteful no-no!! The little bullet comes out balls to the wall but don't have the momentum of a heavier bullet to keep going and have the punch to knock down. The longest shot that I would be taking is probably 500 yards on average most field shots would be 200- 300 yards but do get some shots up to 500 yards but to be totally honest I've been hunting on a edge of a field in a tri-pod and have had deer walk out less then 50 yards.Have had to actually let them walk away some to be able to get a good shot if that makes any sense..So in trying to figure out a good load to start with for the 300 RUM i have come to the conclusion that the 125 is not a good ideal and that rolling a little rock down a hill verses rolling a big rock down the same hill,.. that the big rock has more momentum than the lighter rock.. Light bullet verses the heavier bullet in this beast of a gun is the way to go....So i'm thinking to get started I will start with 180 or 200 grain bullet and a slower burning powder than the IMR 4350 or do you think 180 nosler ballistic tip with 80 grains of IMR 4350 would be ok?...I do have another question for ya though..I did learn in reloading for shotgun shells for duck hunting that it's not the fact of more powder causing more recoil as much as the heavier payload you are tryin to push out of the barrel is what actually kicks the snot out of you..Is that the same for rifles?? .. And i know this is getting kinda personal but do you suggest or have a muzzle break on your 300 RUM??..When shooting at a deer i don't really feel any recoil but i do like to bench shoot from time to time and would like to enjoy it :)
    Thanks for your help
     
  13. baydog

    baydog Well-Known Member

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    Thanks 7magmike. Hunting season is over with here but I'm still waiting and looking down the road hoping that every car that rides by is the UPS truck bring my complete set up just like my son did waiting for Santa to get here!
     
  14. Lefty7mmstw

    Lefty7mmstw Well-Known Member

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    I've been shooting the 300rum for a good # of years and played with 150/165 grain offerings and found the rifle settled down much better when I went to 180 grain and heavier bullets. The rifle didn't loose that much speed either; it'll put a 180 out at 3300fps without even going to max. charge, but it was wound for 3400 on 165's.

    You mentioned the 7stw dying; it may be but as long as there are la belted calibers I can make my brass, and it is a hell of a caliber.

    If you want max thump on boiler room one of the softer 180-230 grain hunting offerings in the 300rum (many have been mentioned here already) and rl25, rl33, h1000, and retumbo will take you far.