Author Topic: 300 RUM - Sharing of load data (Read 32680 times)

whacker1 · « **on:** December 15, 2008, 02:09:53 PM »

My wife bought me a Remington 700 XCR in 300 RUM for my birthday last week. I am asking if anyone is willing to share their successes with loads for the 300 RUM. I have several friends that shoot these currently and I am happy to share some of the information.

Here is what I have learned so far from friends and some other forums:

H 1000 is the powder that most folks are having the most success with for accuracy and still maintaining velocity. It appears that most folks are between 92 - 100 grains - which I believe is getting to be overpressured at 100 grains.

Biggest complaint is with Remington Brass lasting as short as 3 loads and as many as 6 -7. But it seems no one is willing to pay the money for more expensive Nosler Brass, Does anyone know if Nosler Brass holds up any better? I was just about to buy brass, but Cabelas was sold out and it appears that Nosler Brass is backordered a few weeks.

I have heard a wide array of bullets, but most folks seem to come back to 165 - 180 grain bullets.

The only other feedback I was given that I thought worth sharing is that a couple of my buddies have gone to Vais Arms, Inc muzzle brakes to reduce recoil and improve accuracy. I posted this information on another thread if anyone wants to view it - Thread - "Which Brake?"

Anybody like to share on this subject? it could save me some significant time and money in getting this ironed out.

Thanks!

Neil

high country · « **Reply #1 on:** December 15, 2008, 04:12:08 PM »

I have had good luck with imr 7828 and aa8700 both powders shot well in both of my ultra's. bullets....180tsx has put down a lot of game for me as well as the scirocco. the 165gr hpbt sierra is an amazing coyote round when you send it on a 3800fps journey. I did that before there was any published load data

I have loaded up to 116grs of 8700, but you have to swirl it into the case and you cant seat a tsx very deep....but they go like hell

Red Dawg · « **Reply #2 on:** December 15, 2008, 05:44:31 PM »

This is what I shoot out of my Model 700 CDL. 77 grains of IMR 4350, Remington brass, Fed. 215 primer topped off with a 200 grain accubond. It will lay out there at about 2900 fps. I found that my rifle is much more accurate with a little slower load and it also kills much better. I have done a ton of research and the rum is best suited with a large bullet. And if you get this round up over 3000 ft it will rip your animal to shreds. Believe that. I use Remington brass and they seem to be holding up quite well although if you can afford the nosler brass it probably wouldn't hurt. You will find appone doing some shooting that a 200 grain will shoot much better downrange than smaller rounds. At least with my tests.

high country · « **Reply #3 on:** December 15, 2008, 06:10:41 PM »

I guess I would need your def of "rip your animal to shreds" I have a fair number of kills to my RUM's and honestly they just smash a hole in em like my 270 or 257 does, just a wee bit bigger.

Red Dawg · « **Reply #4 on:** December 15, 2008, 06:17:08 PM »

I have one kill with a softball size entry hole and one where it completely blew the shoulder off the animal. That is why I slowed it down. Much more effective killer as it will transfer energy much better.

dbllunger · « **Reply #5 on:** December 15, 2008, 06:31:09 PM »

Only loaded for two different 300RUM's so far a custom and a stocker.

Remington Brass, CCI 250, 97-98gr Retumbo, 180gr Nosler Partition. I have a lot of brass with five fires, and it looks perfect with no trimming done ever. I neck size only starting with new unfired brass, and have not had to FL size yet in the custom.

One rifle is a stock 700 shooting 97gr at 3360 with a brake and holds right at .5/3 @ 100yds. The stocker shoots SAMI spec OAL, and the custom OAL is different. OAL data is in the shop but can get it if you want. Stocker only one bullet type was tried, but the custom shoot's four different 180's almost exactly the same. The custom (Lilja barrel) has no brake at 3400 into .5 also. Chronographed velocity not book.

165's in the custom go up to 3600, but groups open up to .75-1.00 depending on bullet.

As far as killing goes I have had three extremes on Elk, and deer it just slams down with one shoulder ruined. If was so worried about damage or killing power, I would go to a .243 shooting the least expanding bullet I could hunt with.

One spike shot from back to front literally into hip 2" deep, into ribs, out of ribs, across shoulder, along neck, through base of one horn. Alert and running. Looked like a grenade went off from the hair that flew off but he dropped in his tracks. Just a nasty groove the entire length of him probably fatal but only because of injury and time of year. It required a neck shot to kill him. 165 Partition at 3600fps/200yd shot. Almost no meat loss.

Another Spike at 23yds, in just beind front shoulder, and out between last rib and hind quarter on opposite hip. Dropped in his tracks. 165 Lost River at 3400fps. No meat loss.

A good long tined 5x5. In the front point of the shoulder and out the front edge of the offside back hip. Bullet recovered almost through the hide. Pretty much ruined the shoulder with about 25% edible, but minimal damage to rear ham. Dropped in his tracks. Alert and had just ran a short distance. 180 Partition at 3360/350yds.

I mentioned alert because in my experience animals that have no clue they are going to die tend to drop in their tracks faster then one spooked or ready to take off.

ICEMAN · « **Reply #6 on:** December 16, 2008, 06:16:36 AM »

Thanks for starting this one.... I finally have enough brass to justify loading for mine. Added to my favorites...

whacker1 · « **Reply #7 on:** December 16, 2008, 03:13:38 PM »

Interesting comments regarding the Alert vs. not alert... I have never compared the two. I am sure that I will start making note to see what the difference is going forward.

Thanks!

Neil

257 Wby Mag · « **Reply #8 on:** December 17, 2008, 12:55:25 PM »

I was loading 96 grains of RL 25 for a pard, Rem hulls, Fed 215 Mags', 180 Swift Sciroccos', @3460 average, few ripped a hair over 3500. Rifle was a Rem Sendero. That gun would put 3 of em in a 3/8'' on a bad day...

haugenna · « **Reply #9 on:** December 18, 2008, 06:23:25 PM »

Quote from: 257 Wby Mag on December 17, 2008, 12:55:25 PM

I was loading 96 grains of RL 25 for a pard, Rem hulls, Fed 215 Mags', 180 Swift Sciroccos', @3460 average, few ripped a hair over 3500. Rifle was a Rem Sendero. That gun would put 3 of em in a 3/8'' on a bad day...

Any pressure signs?

Might be a typo, but what is "pard"?

I have the 300 RUM Remington 700 LSS. Is that a similar action to the Sendereo?

257 Wby Mag · « **Reply #10 on:** December 18, 2008, 07:23:59 PM »

Pard, would be, a hunting partner. No preasure signs, no ripped to shreds, bucks, bulls, or grizz, just bang-flops.

The LSS has the same action, different snout. The Sendero has a heavy fluted snout, synthetic stock. Pard has a LSS 257 Wby Mag, its a shooter...

dbllunger · « **Reply #11 on:** December 19, 2008, 02:36:22 AM »

Latest update...small 6x6 alert and leaving the area quickly walking. First shot 380 yds in one side and out the other taking a rib each dbl lung. He started running and second one in right next to first, lung, liver, paunch, and out at the last rib on opposite side but not through the hide. Bullet recovered with a chunk of bone in it. 180 Nosler Partition @ 3400. 257 I have never been able to make one go that fast without blowing primers. Actually gained FPS by backing off 1 gr after punching primers.

haugenna · « **Reply #12 on:** February 08, 2009, 09:53:19 PM »

any other info on this cartridge floatin around out there?

lazydrifter · « **Reply #13 on:** February 08, 2009, 10:42:51 PM »

check this out

http://www.realguns.com/loads/300UM.htm

haugenna · « **Reply #14 on:** February 09, 2009, 08:13:03 PM »

Quote from: lazydrifter on February 08, 2009, 10:42:51 PM

check this out

http://www.realguns.com/loads/300UM.htm

No Retumbo on that site. Since I have 24lbs of it, I would like to make it work

Jamieb · « **Reply #15 on:** February 09, 2009, 10:28:46 PM »

I've tried a bunch of powders with the 200gr. accubond in my 300 RUM. My load is 95.5 gr. Retumbo, Fed 215 primer, 200 gr accubond, PF sized RP cases, 3175fps with a very low ES.

haugenna · « **Reply #16 on:** February 09, 2009, 10:43:57 PM »

Quote from: Jamieb on February 09, 2009, 10:28:46 PM

I've tried a bunch of powders with the 200gr. accubond in my 300 RUM. My load is 95.5 gr. Retumbo, Fed 215 primer, 200 gr accubond, PF sized RP cases, 3175fps with a very low ES.

PF= ?
ES= ?

Jamieb · « **Reply #17 on:** February 09, 2009, 10:55:12 PM »

PF sized= partial full length sized
ES= extreme spread

lazydrifter · « **Reply #18 on:** February 10, 2009, 07:33:35 PM »

here's a few more

http://www.24hourcampfire.com/ubbthreads/ubbthreads.php/ubb/showflat/Number/2778536/page/5#Post2778536

Jamieb · « **Reply #19 on:** February 10, 2009, 10:30:39 PM »

I reconize that post.

lazydrifter · « **Reply #20 on:** February 10, 2009, 11:37:24 PM »

yeah I didn't even realize you had posted on that. Small world huh.

buckhorn2 · « **Reply #21 on:** February 12, 2009, 12:24:27 PM »

I have a 300 rem. ultra mag I use H1000 shooting 92 grains with 200 grain accubounds and 215 primers at 3127 my hunting partner loads his with 89.5 grains his gun is 2 inches longer than mine and the 2.5 grains more that I shoot only gives me 10 more feet a second than his We both have beartraps put in our stocks instead of muzzle breaks.

Red Dawg · « **Reply #22 on:** February 12, 2009, 07:42:05 PM »

looks like the speer book mite have some good info on retumbo loads. looks like 86 - 90 grains for a 200 grain bullet. using a federal 215. 90-94 for a 180 and 97-101 for 165. I hope that may help.

haugenna · « **Reply #23 on:** February 12, 2009, 09:00:09 PM »

Quote from: buckhorn2 on February 12, 2009, 12:24:27 PM

I have a 300 rem. ultra mag I use H1000 shooting 92 grains with 200 grain accubounds and 215 primers at 3127 my hunting partner loads his with 89.5 grains his gun is 2 inches longer than mine and the 2.5 grains more that I shoot only gives me 10 more feet a second than his We both have beartraps put in our stocks instead of muzzle breaks.

your pard needs to switch to a slower burning powder. Sounds like you both are burning up all the powder. Thats a good thing.

weasel · « **Reply #24 on:** February 13, 2009, 07:04:35 PM »

ok guys..... what's a beartrap in the stock? my 300 RUM Sendero weighs 10 and 1/2 lbs naked. Would that help absorb some recoil? thanks.

haugenna · « **Reply #25 on:** February 13, 2009, 10:38:36 PM »

Just loaded up some practice rounds to take to the range. 5 of each 97, 98, 98.5, 99, and 99.5. COL is at 3.600. 180 Grain Nosler Ballistic tips with Fed 215M primers.

Is it me or is that bullet buried in that case?

?? Anyone else run into that?

300UltraMagShooter · « **Reply #26 on:** February 13, 2009, 11:10:03 PM »

Quote from: weasel on February 13, 2009, 07:04:35 PM

ok guys..... what's a beartrap in the stock? my 300 RUM Sendero weighs 10 and 1/2 lbs naked. Would that help absorb some recoil? thanks.

ICEMAN · « **Reply #27 on:** February 14, 2009, 04:51:19 AM »

Note sure of his wording, but he may be talking about either a recoil reducer you place in the stock after drilling a hole, or possilby one of the recoil reducing stock modifications available.

http://www.brownells.com/aspx/NS/store/ProductDetail.aspx?p=1499&title=EDWARDS%20RECOIL%20REDUCER

http://www.greghissemstockworks.com/

buckhorn2 · « **Reply #28 on:** February 15, 2009, 06:30:50 PM »

the beartrap is a recoil reducer that is put in the stock. The but pad is taken off and the bear trap is placed in the hole in the stock and epoxyed in and the pad put back on. I don;t like muzzle breaks because of the noise and the times dirt and stuff got in my eyes if the wind is blowing at you. The bear trap takes a lot of the recoil out it is a type of mercury switch. Both take recoil out but just my preference. My gunsmith puts them in all my guns.

Red Dawg · « **Reply #29 on:** February 15, 2009, 09:14:13 PM »

Quote from: haugenna on February 13, 2009, 10:38:36 PM

Just loaded up some practice rounds to take to the range. 5 of each 97, 98, 98.5, 99, and 99.5. COL is at 3.600. 180 Grain Nosler Ballistic tips with Fed 215M primers.

Is it me or is that bullet buried in that case??? Anyone else run into that?

wow i am at 3.596 and that is very tight.

whacker1 · « **Reply #30 on:** April 13, 2009, 08:41:06 AM »

Quote

Insert Quote
Quote from: haugenna on February 13, 2009, 10:38:36 PM
Just loaded up some practice rounds to take to the range. 5 of each 97, 98, 98.5, 99, and 99.5. COL is at 3.600. 180 Grain Nosler Ballistic tips with Fed 215M primers.

Is it me or is that bullet buried in that case??? Anyone else run into that?

After going through the steps to touch the lands and then seating .015 to .03 deaper to ensure that I am not touching the lands - my COAL ends up being 3.74. I backed it off to 3.72, but this is still to long to fit in the magazine. The Magazine is actually 3.69. So I called a couple friends and they are seating at 3.63 and 3.65. I ended up putting all of mine at 3.65, as this was the longest I could be and still fit all three rounds in the magazine. I finally get to shoot this thing soon.

I loaded 165 Accubonds at 96 grains of H1000 with Fed 215 primers, I loaded 180 grain accubonds with 96 grains of powder, and 180 grain combined technology balistic silvertips with 96 grains of H1000. I will let you know in the next few weeks how it turns out.

Thanks for all the help

haugenna · « **Reply #31 on:** April 13, 2009, 05:47:59 PM »

I am heading to the range this weekend to let off some steam and shoot the RUM. I will post the feedback.

haugenna · « **Reply #32 on:** April 19, 2009, 07:39:09 PM »

I finally got to the range to shoot the 300 RUM this weekend. I was pleasantly suprised. I have all the load data in a notebook and no time to enter it. Lets just say this for now. I shoot a 30-378 weatherby as well and was VERY SUPRISED when I achieved 3350fps with the RUM using 10 grains less powder. I was shooting 180 accubonds. I didn't do much grouping b/c the mirage was a little rough. Next weekend will be another trip.

haugenna · « **Reply #33 on:** May 03, 2009, 08:51:08 PM »

The results are in. I have made a few trips to the range and had some good luck and some bad luck. All in all I learned a lot about the gun. I did a little ladder test over the chronograph and was very impressed with the speed. The groups on the other hand, not so impressed.

I was not happy with the runout (.003 to .007) of the bullets I was shooting. That might have been the problem. I changed to a RCBS Gold Medal Match Seater die. (.001 to .003) I was not happy with the seating depth either. I changed them both and got the results I was looking for. I changed it from 3.600 to 3.663.

H1000 and the 200 grain accubonds was much slower than 200 grain accubonds and retumbo. I got the 200 grainers going about 3250. Got to be too much recoil on the gun.

Retumbo and the 180 grain Ballistic Tips and Accubonds proved to be the best combination.

98 grains I had the bullet going 3350. It takes 108 grains in my Weatherby 30-378 to get the bullet goin that fast.

I ended at 100.7 and capped her out at 3487. Pretty darn fast but pretty darn hot. I backed it off a little bit to 100.2 and was moving the 180 grain BT at 3460ish, give or take. What was more impressive was the groups that it shot.

I seated the bullets as far out as I could in the magazine. COAL came to 3.663. Charge was 100.2 grains of Retumbo. Bullet was 180 gr BT and Accubonds. Primer is a Fed215M. Brass is R-P weighing 268.7 to 270.2 grains. Both had the same POI. BT were a little tighter. The picture is the BT. The gun is a Stock Remington LSS with a 26" barrel. (purchased on this site) Lightened the trigger, installed a muzzle brake, bedded the action, and replaced the spring in the bolt. ($550)

THE TARGET WAS SET AT 300YDS!!!!!! There are 6 shots here.

Red Dawg · « **Reply #34 on:** May 03, 2009, 08:53:26 PM »

wow you have that gun shooting great. Nicely done.

whacker1 · « **Reply #35 on:** May 03, 2009, 08:59:17 PM »

great information.
Thanks for sharing

Jamieb · « **Reply #36 on:** May 03, 2009, 10:07:33 PM »

Congrats on a fine group. Looks like your getting things ironed out pretty well

JoshT · « **Reply #37 on:** May 03, 2009, 11:44:59 PM »

A .30 cal 180 at 3400+ ain't no joke!

Nice work... I have some 180 NBTs sitting on my bench, and about 5 pounds of Retumbo... might be worth playing with.

Jeremiah P · « **Reply #38 on:** May 04, 2009, 09:53:54 PM »

Do you happen to know how many grains it would take to keep the speed right around 3250? And if the grouping would be at all similar?

haugenna · « **Reply #39 on:** May 04, 2009, 10:06:40 PM »

Quote from: Jeremiah P on May 04, 2009, 09:53:54 PM

Do you happen to know how many grains it would take to keep the speed right around 3250? And if the grouping would be at all similar?

JP,

I didn't go that low. I am going to guess around 95-96. Only one way to find out and that is to shoot it. Thats a starting point though.

I did chronograph some Federal ammo and that was right around 3268fps. The weight was 180grain, not sure the manufacturer. I think speers.

News:

Advertisement

Author Topic: 300 RUM - Sharing of load data (Read 32680 times)

Advertisement

Quick Links

Recent Topics