300 RUM loads?

[scoutsniper17]

Shooting a Remington 700 XCR,Leupold 4.5-14x50.Tried a few different loads this morning with the 180 gr. accubonds but didnt get good results.First load was with Retumbo at 96 grains,second 96.4,third 96.8 and fourth was at 97.2 grains.That was all my shoulder could take,but best group was only 1.25" so just wondering what you guys might be shooting for loads.Gonna try using some reloader 22 for the next batch of loads...that and a new stock and muzzle break are in my near future.

[high country]

I have had good luck with rl 25, 8700, and 7828.

[MDGrand]

I shoot an XCR II in 300 RUM..

For some reason my rifle never liked the 180 accubonds either..

One loads it does like:

200 Grain Barnes TTSX, RL 25, 87.9 grains, sub MOA 5 shot group.

* I would definitely recommend a new stock.. the ones that came from Remington are POS', I have a HS Precision seen here.

[haugenna]

100.2 grains of Retumbo is what my RUM likes. 215M Primers

RL22 is too fast for the RUM.  RL 25 is too sensitive to temperature changes.  Stick with Retumbo.  Get a muzzle brake on that bad boy. 

[hoyt2002]

Mine is 89.5 gr of IMR 7828 I beleave id have to check my records. 9m primers and a 165 grn accubonds.

[MDGrand]

100.2 grains of Retumbo is what my RUM likes. 215M Primers

RL22 is too fast for the RUM.  RL 25 is too sensitive to temperature changes.  Stick with Retumbo.  Get a muzzle brake on that bad boy. 

I have not heard that before about RL 25... did you have a personal experience with this? I have yet to try Retumbo but I want to.. most published load data shows that RL 25 gives just a little more velocity vs. Retumbo.

with 100 grains are you running compressed loads?

I vote no on the muzzlebreak as I am not a fan of them.. by just replacing the stock you are going to notice a much bigger difference in recoil.. put a pachmyer or limbsaver too before you go that route 

[jess]

I load my RUM with h-1000.... My gun likes it... Half inch groups at 200 yards... With berger 168 VLD

[haugenna]

100.2 grains of Retumbo is what my RUM likes. 215M Primers

RL22 is too fast for the RUM.  RL 25 is too sensitive to temperature changes.  Stick with Retumbo.  Get a muzzle brake on that bad boy.  

I have not heard that before about RL 25... did you have a personal experience with this? I have yet to try Retumbo but I want to.. most published load data shows that RL 25 gives just a little more velocity vs. Retumbo.

with 100 grains are you running compressed loads?

I vote no on the muzzlebreak as I am not a fan of them.. by just replacing the stock you are going to notice a much bigger difference in recoil.. put a pachmyer or limbsaver too before you go that route  

I have had some pressure spikes, sticky bolts, and increase in velocities in the summer time compared to fall and winter performance using the same loads with RL 25.

I don't have to use a funnel or anything.  They are full but I wouldn't call them compressed.

[bow-n-head]

300 RUM in a remmington rifle is one of the most accurate guns I have shot in many different loads. I hate muzzle brakes. I would buy a lead sled to sight it in on and then just take it in the field. You don't notice the recoil much when you are shooting at game.

[scoutsniper17]

I already figured it out..h-s precision thumbhole with mercury,no muzzle break.87 grains rl-22 is shooting good groups at the moment.Thanks everyone.

[MtnMuley]

I would buy a lead sled to sight it in on and then just take it in the field.

I would highly recommend NOT doing this.  Lead Sleds have proven to break stocks, rings, and scopes with these high powered magnums.  I've seen it happen with an XCR.  They're great for smaller calibers, but not RUMs.

Also, I'd definately stick with Retumbo.  I own 3 Mdl 700 actioned 300RUMs, and all accept it very well. I know of another 15-20 others with Remington RUMs who all use Retumbo with good results.  I really like the temperature stability with that powder.  Maybe your gun just doesn't like the Accubond, but Id find that weird, as most stock XCRs I've seen shoot them well.  I agree with MDGrand about the stock.  A replacement would be beneficial imo.  I've been in your shoes a few times with these RUMs and know the feeling.  Keep tinkering with different loads and make sure to clean your barrel well before bailing on a load.  Load a few at 98-98.5 grains of Retumbo and see if your group tightens.  Last, but not least, you will thank yourself later for adding a muzzlebreak for the XCR.

[whacker1]

just checking in to follow this one.  Reloading book is at home, I will share later.

[MDGrand]

I would buy a lead sled to sight it in on and then just take it in the field.

I would highly recommend NOT doing this.  Lead Sleds have proven to break stocks, rings, and scopes with these high powered magnums.  I've seen it happen with an XCR.  They're great for smaller calibers, but not RUMs.

Also, I'd definately stick with Retumbo.  I own 3 Mdl 700 actioned 300RUMs, and all accept it very well. I know of another 15-20 others with Remington RUMs who all use Retumbo with good results.  I really like the temperature stability with that powder.  Maybe your gun just doesn't like the Accubond, but Id find that weird, as most stock XCRs I've seen shoot them well.  I agree with MDGrand about the stock.  A replacement would be beneficial imo.  I've been in your shoes a few times with these RUMs and know the feeling.  Keep tinkering with different loads and make sure to clean your barrel well before bailing on a load.  Load a few at 98-98.5 grains of Retumbo and see if your group tightens.  Last, but not least, you will thank yourself later for adding a muzzlebreak for the XCR.

Interesting... I have not heard that before about the lead sled. I use mine ALL the time when zeroing.. and I have never had an issue with my RUM.. That being said, I think the pachmeyer or limbsaver along with a new stock, mine is HS precision probably allows for this.

As far as scopes breaking and rings.. really? Wow.. that would suck.

Going to try Retumbo just as soon as I get my new Hart barrel back on my RUM.   

[bow-n-head]

Your ears and your friends ears won't appreciate the muzzle break. Every time I get a shot at a deer or elk I don't have time to put in ear plugs

[scoutsniper17]

That XCR is not a real joy to shoot but recoil isn't the real issue its the fact that the barrel isnt floated and I want the full length bedding as well as the pillars that h-s offers so the thumbhole and mercury outta help on the recoil side.I am thinking that I am gonna keep working with the Retumbo but maybe try some 200 grain Barnes.Like I said before,any suggestions you guys have is really appreciated.I will try the Accubonds with the Retumbo again but move up to 98 grains and work from there.

[haugenna]

Muzzle brakes only hurt your ears if you are not wearing ear protection.  Get a cap for the threads for shooting in the field. 

[bow-n-head]

Strait up if you need a break mabe you should shoot a smaller caliber

[MtnMuley]

Your ears and your friends ears won't appreciate the muzzle break. Every time I get a shot at a deer or elk I don't have time to put in ear plugs

Take the brake off and thread on the end cap when hunting then.

[haugenna]

Strait up if you need a break mabe you should shoot a smaller caliber

This comment comes up a lot.  A brake is usefull at the range.  When I shot 30 rounds from an ultralight 300 Win Mag at the range, a brake is very usefull.  I get to shoot COMFORTABLY for the entire time and it is enjoyable to shoot. This is great practice. When it comes to the field and hunting situations, take the brake off and put on a thread cap. 

I have seen brakes on large and small calibers.