Rem 40x 300wm

[Adam 6mm build]

Just acquired this rifle 40x 300wm what is a good powder to start with use would be ringing some steal out to 1000yrds and Maybe hunting

 

[Dusty Stevens]

How does 7828 look in there?

 

[matman_eod]

I'm usually loading 4831 at 180SP. Loading amount is between 70 to 75gr.
But, my 700 having hunting barrel is too light, under 8lbs. that cause a bit hard recoil.
If you don't mind the cost, there are newer powders. I'd prefer these traditional #.

 

[MagnumManiac]

I use H1000, RETUMBO & RE25 for all bullets 180gr & above.

YMMV however.

Cheers.

 

[rogn]

Re26 gives surprising velocities maybe even 100FPS+ over more traditional powders and the accuracy seems encouraging. New technology I guess. Might be hard to find, people are looking for that 100FPS+.

 

[Rdlningcltchdmpr]

R26

 

[46and2]

Just acquired this rifle 40x 300wm what is a good powder to start with use would be ringing some steal out to 1000yrds and Maybe hunting

What twist is your barrel? Remington website says 12, hope that is wrong.

 

[Adam 6mm build]

Way wrong 1-10

 

[46and2]

Good!
I wouldn't put it past 'em. I've seen a factory 22-250 in 14 twist.

 

[Zero333]

Should be 1 in 10" twist.

Powders ??? Can depend on bullet weight. But RL-26 works well all bullet weights 180 to 245.

RL-26
RL-25
RL-23
H-1000
Retumbo (210--245 gr bullets)
H-4831 (works for 180 to 215's for raw accuracy, but other powders get you more speed)
IMR-8133 (215-245 gr bullets)
IMR-7977
IMR-7828
Viht. N-160
Vhit. N-165
Viht N-170 (215-245 gr bullets)
Viht. N-560
Viht. N-565
Viht. N-570 (230 - 245 gr bullets and lots of freebore so bullets don't impede into the boiler / powder room)
Ramshot Magnum
Norma MPR
Norma MPR 2
Accurate Magpro

3 most popular powders from that list are H-1000,... RL-26,.. & Retumbo

 

[matman_eod]

Well, I loaded 4895 at light bullet about 150gr. That can over 3000 fps, but over spined at my 1-9.5. That's no problem at under 600yds. 1000yds... hmm, tried anyone at light bullet?

 

[davidjoe]

Doesn’t is seem like a lot of these 300 Win 40-X’s were made but only slightly used? I know that for years it was the staple LR bullseye competition round. I have taken home a few from stores to see a nearly new condition factory barrel. I have to admit I too, also don’t shoot them much.

I always chuckle how discretely the Custom Shop stamped 300 “Win” on 40-X barrels compared to how lavishly they engraved calibers like “6mm Remington BR” on others.

 

[Adam 6mm build]

Davidjoe how true I believe this 300 wm 40x probably has less than 50 rds on it

 

[Dusty Stevens]

Good!
I wouldn't put it past 'em. I've seen a factory 22-250 in 14 twist.

Thats the good ones- not a mistake

 

[stacy]

WELL I'M OLD FASHION RL-22 AND 215GM PRIMERS AND 185GR BERGERS WAS THE TICKET WITH MINE

 

[46and2]

WELL I'M OLD FASHION RL-22 AND 215GM PRIMERS AND 185GR BERGERS WAS THE TICKET WITH MINE

Let me guess, 75.5 gr?

 

[stacy]

SUMMER TIME RITE ON WINTER TIME 77.5

 

[46and2]

That is as close to a "universal load" as I've ever seen.
During the Indiana state quarantine I loaded every piece of 300wm range brass I had with that that load with 180gr Ballistic Tips... just in case.

 

[Adam 6mm build]

Yes stacy I found the golden ticket rl 22 77.5 grns 180 noslers WOW now we have a winner literally 1 whole at 100yrds this rifle is amazing WINNER WINNER

 

[stacy]

THAT WAS THE COMBO THAT I SHOT THE NC 1000YD RECORD WITH BACK IN 1996 4” GROUP AND A 50 SCORE WITH 4 SHOTS IN THE X RING