kilotanker19

hello everyone just bought a 300 rum in a 700 bdl looking for an accurate loaded with 180 to 200 grain bulletts i want to stay heavy because i am sure accuracy with lighter bulletts is not so good

stubblejumper

How did you come to that conclusion?Some 300ultramags are more accurate with lighter bullets than with heavier bullets.
My own choice for a hunting load is the 180gr tsx ahead of r-25.The muzzle velocity is 3380fps and groups average about 5/8" at 100 yards.

Scott Gags

96 grains Retumbo nets 3200 FPS with a 200 grain accubond in my buddies 300 RUM. Max charges in my Nosler manual are:

91.5 Grains RL25 at 3185 FPS
95 Grains Retumbo at 3187 FPS
98 Grains Magnum at 3191 FPS

The 200 grain accubond has a .588 BC and nearly identical in trajectory to the 180s because of it high BC.

salukipv1

I think that 200gr Accubond has a BC of .588, I like that! Personally I wouldn't go lighter than 180gr and would prefer the heavier 200gr in such a hot 300 cartridge. I really don't see the point in going lighter unless niether would shoot accurately, and I'm pretty sure you could get a 180 or 200gr to shoot well.

stubblejumper

A 168gr tsx will out penetrate the 200gr accubond,and will produce less recoil as well.I would have chosen the 168gr tsx myself,but the 180gr tsx shot more accurately in my rifles.A friend of mine uses the 168gr,because it is more accurate in his rifle.

kilotanker19

the way that i came to that conclusion its just that most often very light bulletts in a large capacity case are not very accurate

bigcountry

first I ever heard that one. I loaded extensivly for the 300RUM, actually 3 different ones and found one loved 168gr sierra matchkings, and one shot 190gr better and another one shot 168gr to 200gr matchkings evenly.

devil dog

You will just have to see what your rifle likes, one ofmy buddies 700CDL that was just slightly accurised, bedded the action and floated the barrel channel, loves 100gr of Retumbo pushing a 180gr TSX, it will group .5 off a Lead Sled. Another buddies 700 that was fully accurized and rebarreled shoots better with BMG, besides, experimenting is half the fun!.

hunter5325

Well my Rum never heard that and shoots 150IB's @ 3600fps into .75"

My main elk/bear load is a 168TTSX @ 3450fps via Retumbo.....this one makes stuff dead in a hurry!


Brett

Bubba48

I allso shot the 300RUM mine is a remington SPS Stainless I shoot nosler 180gr accubond and today I found a load with nosler 150gr E-Tip. Tryed the remington 150gr scirocco bullet I ended up takeing them apart reweighed the powder to 93gr's andput them back together and now they shoot 1/2 inch groups. when I took them apart
the weight was between 93.5gr's to 95.8gr's I read an article soom were that remington used IMR 7828 in the 300rum in the nosler reloading book there max load for IMR 7828 was 93.0gr's. Now I just need to find loads for used brass in the 300 rum.