I took my new Sako to the range this weekend for the first time and I fed it my old standby loads of 76grRL22 and 70gr IMR4350, both behing Fed 215 primers. Bullets were 180gr T/TTSXz as they both tend to shoot to POI in everything I've tested and they did. Accuracy was right at 3/4-1" and velocities for both loads were in the 3080-3100 range which is where I want to be. I'm going to try my old trick of using F210 primers instead as that has worked for me in the past with loads less than 75gr and see what happens.

That said, can some of you guys suggest other loads to try? thanks!

The 180 gr Protected Point Partition under your charge of RL22 is my favorite in my 300WM.

My favorite in the 300 Win Mag is 72 gr/IMR 4350, Fed 215M, WW brass, 180 grain Nosler Partition. This load is max, but not excessive in my rifle; I get 3013 fps.

A classic load for the 300 WM is 75 gr/H4831 w/ 180 gr bullet, but I find it somewhat less accurate than the one I listed above.

mark

I use H4831sc with 168 TTSX's win brass and Fed215m primers, never really saw a need for 180 gr Tripple shocks for any game up to elk, have also used IMR4831 with great accuracy and speed, 180's will work fine but even the 168's over penetrate when shot out of a 300WM!

Last year I used H4831sc with 168 TTSX in win brass to take a rag horn bull at 300+yds. He was quartering away and I hit him near the last rib and it went out the offside shoulder. He didn't go 20yds after he was hit.

Nosler / Winchester brass, Fed. GM215m primer, 180 gr. Nosler PP, Spitzer, seated to 3.385 OAL.( max for the mag box ). Max load of H-1000. Yeilds 3075-3100 fps. Obviously, very low SD and will do this at tempts of 85-23 degrees, varified over the Oheler 35. Groups .4"-.7" @ 100 yds. depending on what kind of day I am having ! Holds 1" @ 200 yds. Three shot groups.
Nosler brass, 215m, max load of H-1000, 168 TSX, 3180 fps. same as above.

73g-74g of H4831 is a good one to try, but it usually falls behind R22 on MVs. 7828 aint bad either.

Back when I ran a 300 wm, 72 gr. of imr 4350/w CCI 250 with most of the 180's I tried worked very well Accurate and anchored game.

Bullets where win power points, speer mag tips and spitzers, nosler partition. Velocity in the 3050 to 3100'ish chronoed.

75 grains RL-22 worked the charm in our Belgian Browning.

A load one of my 300wm likes is 180gr nosler Etip 80gr H1000. It also likes 220gr hornady round nose with IMR7828SSC

My Sako 85 FL 300wm shoots bug holes with Nosler protected partitions and 73grns of H 4831, A bit below your target velocity though.

75.5 grains of r-22 pushing a 180gr nosler partition and 76.0 grains of r-22 pushing a 180 grain sierra pro hunter. Clover leafs out of the second one. I get 3/4-1" groups out of the partitions. I use winchester mag primers with both loads.

Yikes! impressive!

Years past I used a lot of IMR4831 and RL22 in the 300 Win Mag with not much to complain about.

But if starting over with the cartridge today I would work with H1000...it has proven to be such a good and consistent powder in the 7mm Mashburn for me that I would give it first crack to try.

My best 180 load is
180 TSX
76 H4831SC
Win cases and 215 primers
3070 fps from 26" bbl

My favorite is
200 NP
75 R22 or N560
A little over 2900 fps
N560 is slightly more accurate but not enough to matter.

Looks like the 76gr of H-4831 is the keeper men. Shot to POI under 1" with T/TSXs and Hornady Interlocks. I did however use 210s instead of 215s as I generally don't see a need for magnum powders if I'm running under 80gr of powder. Any of you guys know if there is any difference between H-4831 and the SC version?

I see you sneaking around looking for help in the Arms Race!

H4831 and the SC have proven to be interchangable in my loads. Treat them as if they were same powder, just different lots. Sneak up on your previous max load.

SC sure meters a whole lot easier than the standard. I like the stuff. Use 110 grains + 2 grains of poly filler in my .450 #2. Boom!

�Sus juguetes impotentes no te ayudar�! Tengo una tecnolog�a superior y los n�meros.

Jorge, I used 210's int he 300 win mag too, but noticed that with some loads the velocity became erratic in colder temps. Something to think about if you ever intend to hunt in the north.

+1 on the H-1000. Not fast but steady. A sleeper !

Ha! skullduggery will get you nowhere! Just spoke with Big Mike, he'll let me know Wednesday if I can get an Oryx, in which case I'll fleet up to the 300.

BWalker; That makes perfect sense. I used to use 215s in all my loads the book said to use them, specifically the 338, 375 and the 300 Win Mag. Then a friend of mine who does a lot of reloading and knows some big shots at Federal, clued him in on the 210s and accuracy. I tried it with the 338 and 210s and the results were noticeable. In the 375 I used our own HHHack's load using RL-15 and 210s and so far it's worked great, although in my favorite load for that caliber I use H-414 (76g)and F-215s. The only caliber that did not work was with the 257 Weatherby where switching to the 210s gave me pressure signs. Go figure!

300 YARDS? Whoaa!

Not sure I have a rifle or the eyes to top that under any conditions. Very nice.

I'm going to reincarnate this thread rather than start a brand new one.

Looking to get started loading for another 300 win mag. I've got a bunch of partitions (600+) to send down range using RL22 and H4350.

A couple of folks mentioned goid results from H1000 with a 180 gr bullet. Nosler does not mention this powder. What are you folks using for a max load?

All my previous 300's liked RL22 75-76, but the current flavor does not. I get holes touching with 69-grs of H4350. Have not chronied the load yet. 70-grs IMR4350 does well too, but groups open a little. Am waiting to try some 168-grainers and some 200- grainers and H4831SC next range day.

I need to try some H1000, that is insane accurracy!

83 grains of h-1000 is max with the 180s

That's funny...I'm sure with a target like that, anything is possible...

80 grains of H1000 or 74.5 grains of H4831 behind a 180 accubond bores out a ragged hole from my NULA model 28 ! The 175 LRX with 80 grains of H1000 does the same..

I have used the 72 gr load of IMR-4350 with several different 180 gr bullets with excellent accuracy in a couple of .300 Win Mags. It has worked well on elk and wild pigs.

For the 300 Win, I either run H 1000 for top velocity, and I tend to stray over book max on that one..

then I'll also use powders like IMR 4064, 4895 RL 15 in it with bullet weights from 150 to 190 grains..

on the lower end, I have also used it with up to 40 grains of SR 4759 with a 150 grain bullet, for when you just want to shoot it for target practice,

and even let kids take it out hunting with a cast bullet manual load of 22 grains of Unique and a 150 grain ballistic tip... which is pretty much duplicating 30/30 loads...

few local kids have taken deer with 'grandpa's elk rifle' using that load...

its enjoyable taking it out to the range with those load, so you are not wearing it out, or beating yourself up at extend range shooting.. which beats letting them just get dusty in the gun cabinet..

if I need it to really be a MAGNUM, I load it with 220 grain Round Noses, in a HOT load that is running that bullet at over 2950 fps... using H1000..

I have a Model 70 and a Browning A Bolt in 300 Win..

Look at H1000, I've fallen in love with the stuff lately in 300 Win mag and 25-06. I've had my Browning Stalker in .300 Win Mag for about 20 years now and tried all kinds of stuff and it's always been accurate but as of the last two years, accuracy has fallen off, even with my original go-to load and even though throats seem the same so I went back to the drawing board.

Last year I found that 180 grain Accubond 2nds with 81 grains of H1000 gets 3025 out of my 26" barrel. I worked up to this load and-you should too because it is above max in some manuals but OK in others. I get very low extreme velocity spread and it is consistent in velocity from 30 degrees to 80 degrees F, which I can not say the same about with RL22.

I almost gave up on that load since it was only shooting about 1.5 inch groups at 100 yards and the rifle always did better than that with loads it liked, then I shot it at 300 and 530 yards. I have always heard about some bullets and loads not settling down unil well past 100 yards but never noticed it myself until now. At 300 yards this load was shooting 1.75" groups! It only shot 1.5" at 100 yards. Then at 530 yards I only shot one group but it measured less than 5"!

I will now always check my loads at at least 200 if not 300 yards before giving up on them. I like the low variation in velocity with H1000.

I'd be looking at 7828ssc.

In a 300 H&H Improved (2-3 fewer gr of capacity in my Hornady brass than Win Mag brass)... a max load of it under a 180 NBT produces 3090fps out of a 26" barrel (1952 Model 70).

Back when I ran a 300 WM (pre Mashburn days...grin) I used a 200 NPT and H1K.

Dober

I don't really have a lot of love for the 300 winny, so I traded mine for this today: