Remington 300 Ultra Mag

[MDGrand]

94 huh? That is just about the highest charge I have seen for a 180 grain bullet for a 300 RUM

[bobcat]

94 is the starting load, and 100.5 the maximum.

[MDGrand]

Oh I see. Did not see the 100.5 in the recipe the first time.  Is the Hodgon powder the slowest burning they offer?

[whacker1]

I have an Remington XCR also.  I have been very happy with it.  I have had my best success so far with 168 grain Berger VLD and 96 grains H1000. 

I haven't chronographed it yet, but it gets me sub moa.  My am planning on trying the 185 grain Berger VLD's next.

[MDGrand]

I am glad that you found good results with the 168 Bergers.. I have a box of them and I thought about trying them with the RUM.

For now though, I use the Berger 210 VLD with my RUM in the following receipe:

OAL = 3.54, RL 25 87.9 grains, Nosler Brass, CCI LRM Primer. 2950 FPS, 0.63 BC. I have yet to see what it will do on an animal, but I have high hopes!

[whacker1]

My over-all length is closer to 3.65.  I wish they would make the magazine dimensions bigger on the Remingtons, because I could go longer yet if I had that option.

[MDGrand]

Well, my OAL when measuring my bore is longer than 3.54.. what I am saying is the ammo I made with the 210 Berger has a OAL of 3.54. that is what shoots the best.

From what I hear, a short free bore is MUCH better than a long one..

[LittleJohn]

Don't want to jack this but my bro bought some 110 grain V-Max for his 300 RUM, any thoughts from you guys, or anyone ever tried them??

[MDGrand]

110? Can you even shoot a 30 cal 110? I wouldnt do that out of a RUM if you could.. NO WAY. 130 grains move at close to 3700 FPS.. wouldnt want to see a 110. it probably would break up in the barrel or in flight.

[LittleJohn]

V-Max makes them in 30 cal. I know a few guys running them in the 30.06's. I am sure them are screaming. My bro wanted me to ask if anyone knows anything on here about running them in the RUM

[bearpaw]

V-Max makes them in 30 cal. I know a few guys running them in the 30.06's. I am sure them are screaming. My bro wanted me to ask if anyone knows anything on here about running them in the RUM

That would be awesome for yotes and prairie dogs if it will shoot groups....

[whacker1]

I understood what you were saying.  I don't remember the actual dimensions, but I will give it a shot for purposes of illustrating my dilemma:

OAL for the chamber is like 3.77 in my rifle.
OAL for the magazine is like 3.7
so to get the loads to move up and down in the magazine I have them at 3.65.  The closer I got to the lands the better mine shot in regards to accuracy, but I had to back the length down to be able to use the magazine

Most Remingtons I understand are plagued with the same problem of short magazine length.

[MDGrand]

I totally see what your saying.. my OAL length I think is almost identical to yours.. 3.7.. magizine is a bit shorter. BUT.. I think this is pretty common across ALL factory rifles.. they have to live up to SAMMI specs, as making a rifle that shoots bullets well seated in the lands can cause excessive presure. Plus they need to feed properly

MAYBE.. there is an aftermarket magazine that will let you go to the full lengh?

I am thinking about gettng the HS Precision Detachable magazine.. perhaps that will come with a longer OAL?

[whacker1]

I totally see what your saying.. my OAL length I think is almost identical to yours.. 3.7.. magizine is a bit shorter. BUT.. I think this is pretty common across ALL factory rifles.. they have to live up to SAMMI specs, as making a rifle that shoots bullets well seated in the lands can cause excessive presure. Plus they need to feed properly

MAYBE.. there is an aftermarket magazine that will let you go to the full lengh?

I am thinking about gettng the HS Precision Detachable magazine.. perhaps that will come with a longer OAL?

I would ask for the specs on the magazine.  I know others that tried to change it and have had no luck in doing so.  They were going to resort to taking a dremel to a stock to make it bigger, but I haven't been willing to go that direction.. 

[bearpaw]

You 300 RUM owners who have a REM Sendero do you know what twist the barrel is?
Also I was wondering if someone with a Sendero has a fast accurate load for any of the following bullets they would share?

Barnes 110 gr  Tipped TSX FB
Barnes 130 gr  Tipped TSX BT
Barnes 150 gr  Tipped TSX BT
Barnes 168 gr  Tipped TSX BT
Barnes 180 gr  Tipped TSX BT
Barnes 200 gr  Tipped TSX BT

Any accurate loads for the standard TSX would be worth trying too, THANKS, Dale