What are you all having the best luck w/ in your 300 Win Mags?

Thanks,

Reloader

I won't list the powder charge, but I will list the components I use:

Bullet: 180 gr. Nosler Partition

Powder: Reloader 22

Case: Winchester

Primer: Federal 215

I've used this basic load from Alaska to Mexico and from Oregon to Namibia with superb results on everything from sheep to eland. I get just under 3100 fps. out of it, which is plenty of MV for any hunting purpose, and this one single .300 Win. Mag. load is good for at least 98% of all the world's big game.

Nosler, Speer, and Lyman list some particularly good .300 Win. Mag. loads, and I suggest you follow their guidelines as you work up your own loads.

In general, and I've been reloading for the .300 Win. Mag. for 25 years, I've found that the components I've listed work extremely well in a wide variety of rifles in this chambering.

AD

For most my shooting with a 300WM I use that same load that Allen uses, though maybe not quite as hot as one that shoots around 3100 fps. A few weeks ago I was working up a load for Africa where I wanted to use a Swift A-Frame 200 Gr bullet. I was very pleased to see how well RL-25 works for this heavier bullet.

74.0gr RL22 and a 178gr a-max (standard disclaimer applies to powder charges in your rifle)

200 gr nosler partition & a bunch of old 4831

It used to be all NPs (mostly 180 grs, with the occasional 200 grs) for me. Works well. These days, a 168 grs TSX with a max load of RL22 in WW cases and a Fed 215 gets the nod. The new TSX shoots very accurately, penetrates as well or better than the NP, has a very high BC, and does not foul THAT badly. All that, plus 1-200 fps extra when compared to the NP load.
- mike

Here are a few loads for you:



(FN=Flat Nose, SP= Spire Point, HP= Hollow Point, RN= Round Nose), JHP= Jacketed Hollow Point, FMJ=Full Metal Jacket)


Loads for .300 Winchester Magnum Rifle:


(Note: These are near maximum loads, you should use 10% less to start.)
(See note on Powders below or read all about various Powders.)
Bullet is .308" diameter. Due to different barrel lengths, type of bullet, seating depth, primer type and other factors, you may not get near the FPS charted. It is just a guide and the reason you should start under these charges and work up.


-----------------------------------------
110 grain JSP (Jacketed Spire Point)
H4895 68.0 gr. 3,494 FPS
H380 72.0 gr. 3,638
A2700 78.5 gr. 3,656
A3100 82.0 gr. 3,419
-----------------------------------------
125 grain JSP (Sierra Spitzer Point)
H4895 66.0 gr. 3,309 FPS
H380 71.0 gr. 3,403
A2700 74.5 gr. 3,478
A3100 82.0 gr. 3,373
-----------------------------------------
150 grain JSP (Hornady Spire Point)
IMR 4895 64.0 gr. 3,210 FPS
H4350 74.0 gr. 3,244
IMR 3031 49.5 gr. 2,850
Reloader 12 59.0 gr. 3,105
Reloader 15 65.3 gr. 3,180
H380 71.0 gr. 3,303
A2700 69.5 gr. 3,177
A3100 76.0 gr. 3,108
-----------------------------------------
165 grain JSP (Spitzer Point)
H4350 73.0 gr. 3,188 FPS
Reloader 12 62.0 gr. 2,935
Reloader 15 62.6 gr. 2,980
Reloader 19 74.6 gr. 3,070
Reloader 22 79.4 gr. 3,135
H380 67.0 gr. 2,997
A2700 67.0 gr. 2,959
A3100 73.5 gr. 2,945
-----------------------------------------
180 grain JSP (Spitzer Point)
H4350 71.0 gr. 3,079 FPS
IMR 3031 58.5 gr. 2,900
IMR 4895 59.0 gr. 2,950
Reloader 19 72.3 gr. 2,990
Reloader 22 76.9 gr. 3,030
A2700 66.0 gr. 2,879
A3100 72.0 gr. 2,899
-----------------------------------------
200 grain JSP (Sierra Spitzer Point)
H4350 68.0 gr. 2,807 FPS
Reloader 19 68.0 gr. 2,810
Reloader 22 73.4 gr. 2,875
A2700 62.0 gr. 2,697
A3100 69.0 gr. 2,703
-----------------------------------------
220 grain JSPCL (Speer soft point "Core-Lokt")
H4350 66.0 gr. 2,694 FPS
IMR 3031 52.5 gr. 2,505
IMR 4895 53.5 gr. 2,525
A2700 59.5 gr. 2,445
A3100 67.0 gr. 2,560
-----------------------------------------

Discussion: Listed powders of IMR, Hodgdon, Alliant and Accurate. Use which ever you have handy. Slow burning powders generally work better in longer barrels and heavier bullets. 300 Mag. Cases will stretch, especially with hot loads, and you definitely need to check each in a case length guage and trim off excess brass. Of course, discard any cases that show a split anywhere on the case. For hunting at long distances with an unobstructed view, you should choose the spire point with a soft lead tip. For hunting at shorter ranges in brush, as is common in the woods of Alabama, you should choose a round nose bullet. They are less easily deflected and/or deformed by brush that you may be shooting through. The flat nose bullet is used especially in tubular fed magazines to prevent pressure on the primer in the cartridge above it.
There are a number of other high performance bullets on the market. The "boattail" is a very good long range target match bullet. It has very good wind performance. If you are shooting for precision, you should weight each powder charge and put exactly the same amount in each case.

Any of you had any luck w/ 150s?

I've had pretty good accuracy w/ 150SSTs on top of 66 grns H4895 in the last few years but, they are not good for hunting big game. I've been thinking of trying the 150 Accubonds w/ some IMR 4350 and R19. The ABs shot well in my 06', guess we will see how they fair in the 300 next.

I've also got a few hundred 180 grn Match Kings and about 80 180 grn NBTs laying around that I'm going to try for groups w/. I had a feeling R22 or H4831 would probably get the nod for the 180s as they work well in my 300 WSM.

Have any of you tried IMR 7828? Accuracy?

Thanks,

Reloader

Well for thump,.... I don't believe the need for a magnum, but IF ONE HAS TO HAVE ONE, then I believe in making it a magnum.

My most common load for my 300 Win Mag ( Browning A Bolt with a Boyd's Black Laminate Stock) is 83 grains of H 1000 and a 220 grain Round Nose Sierra or Hornady. MV is in the 2950 -2975 fps range out of a 26 in barrel.

It was a load I once came across in an older 1960s reload manual or something like that , belonging to someone else. So I wrote it down and tried it and it was not only accurate as all get out, when you shoot and hit a gong at 300 yds, you still hear the "clang" loudly. It sure gets people's attention.

With that bullet weight and that velocity, it is a lot flatter shooting than one would normally give a Round Nose credit for being.

I did load some up for someone with the same load but a Nosler 220 grain SMP. YOU are well armed with a 30 caliber carrying that load.

Cheers and Good shooting
seafire


PS, This load is not for children! For those of you who are all thumbs on the reload bench, work up if you try this load.

180gr Nosler Ballistic Tips and 80grs of H1000 has served well the last ten years for me. I only tried 150 Hornady BTSP once with 70 gr 0f H4350 on deer and it blew up so I sayed away from 150's but the new interbounds I might try yet.

I love that RL22 so much I bought a 5 lb jug of it. Shoots well in my 300win and 270wsm and 300 wsm and 270. Get 3100+ with Sierra 180's in my 300 win. plus it is more accurate than any other powder I have tried.

My favorites. The 168gr is #1 by volume, a few hundred at least. I've lost track.

168gr Sierra MatchKing
73gr RL-22
WLRM Primer
3.340" OAL
2941 fps

190gr Sierra MatchKing
71gr RL-22
WLRM Primer
3.340" OAL
2851 fps

180gr Partition (Antique)
75gr RL-22
WLRM Primer
3.340" OAL

200gr AccuBond
72gr RL-22
WLRM Primer
3.340" OAL

Start low and all that safety stuff.

I've got two 300 Win Mags, a Browning A-bolt and a Remington 700. Both like a 180 gr. Nosler Ballistic Tip or Sierra Gameking over 73 gr. of IMR 4831. Velocity chronographs at ~3050 fps, one of the few loads where the chrono is close to the book values. The Remington shoots ~0.5 MOA, the Browning ~0.75 MOA. For me, the 4831 load grouped better than 7828 or RL-22.

I shoot 2 300's The old mod 70 (pre 64) gets a case full of IMR 4350,Rem brass,fed 215 primer,180 gr Nosler partition. 3034 fps 1" groups. 3 dead elk. The other is a Ruger 77 MKII. It gets the same powder same charge. Nickel fed cases ,(stainless rifle with a different chamber)Fed 215 caps, and Barnes 180 TSX,3100 fps 3/4" groups. 2 dead Elk. Works for me

76 grs. RL-22 with a Fed 215 and a 180 Nosler.

Barnes TSX 200 grain 71 grains H4831SC Fed 215M Norma brass using Lee Collet Neck Sizer, Redding Body Die, and Lee Factory Crimp Die.

Only 2800 fps but very accurate and not stressful to shooter or gun.


Without guns we are subjects, with guns we are citizens

Barnes TSX 200 grain 71 grains H4831SC Fed 215M primer Norma brass using Lee Collet Neck Sizer, Redding Body Die, and Lee Factory Crimp Die.

Only 2800 fps but very accurate and not stressful to shooter or gun.


Without guns we are subjects, with guns we are citizens

Sorry about that, thought I was editing

I use a 165 grain Hornady SST or Interbond with 79 gr of R22, Winchester brass, and Federal 215 primer. 3200 fps and MOA accuracy.

H4831 and RL22 are your best bets IMO. IMR 7828 and H1000 are worth a try as well. This is all with 180 and 200 grain bullets. 4350 works well with the lighter bullets, but the 300 win mags I have shot preferred the 180 and 200 grain bullets. H4831 performed better than any powder in all the 300WMs I have shot.

Remington Brass
CCI 250 Primer
H4831SC works best for Partition 180 and 200 gr bullets.
My A-bolt doesn't like light bullets at all.

Danny Boy

quote:

PS, This load is not for children! For those of you who are all thumbs on the reload bench, work up if you try this load.

Yeah, no shit Mr. Roundnose lover! Sounds a bit toasty to me!

I have two Rugers in 300 win mag and both like 180gr Nosler Partition over 72.5 gr VV N160 AND Fed 215 primers. This is not a real hot load but shoots .400 without a question.

Bullet: Sierra 200 Grain HPBT
Powder: 71.7 grains of IMR-4831
Primer: Winchester WLR
Case: Winchester
Firearm: Ruger 77
Optics: Leupold 4x12AO
Velocity: 2986 FPS @ 15' from muzzle
Accuracy: 5-shot groups <1 MOA

quote:

Originally posted by Jon A:

quote:

PS, This load is not for children! For those of you who are all thumbs on the reload bench, work up if you try this load.

Yeah, no shit Mr. Roundnose lover! Sounds a bit toasty to me!

JonA;

Good seeing you around. Missed your input in here for a while. Sounds toasty but in actuality I have reloaded the same pieces of brass 5 times or so, which I understand is not bad for a magnum case, when loaded hot. Full lengthed resized each time.

cheers
seafire

82.3 grs. of Reloader 25 with any 180 gr. bullet - I like Nosler BT. This is max.

quote:

Good seeing you around. Missed your input in here for a while.

Thanks. When the board moved/changed/disappeared/reappeared/disappeared, etc, I was busy enough with other things I lost patience.

Glad that load works for you. I never tried 220's in my 300 WinMag, but it was all I could do to get to 3000 with 200's. I expect I would have lost more velocity with 220's--although the shorter roundnose shape is probably helping you somewhat compared with the long 200's I was using. I could easily beat the my fastest X, Partition, etc 180 loads with 180 round noses.

Anyway, I'll be trying some 225's in the RUM here pretty soon. It'll be interesting to see how fast I can push those puppies.

JOn,

Keep us posted on that RUM. I am sure you speak of a 338 RUM with a 225 grainer, or are you pushing a 225 grain 30 cal bullet out of a 300RUM. I know you spoke of rechambering a 300 Win A Bolt into the RUM, and were shooting the 240s.

The H 1000 is a pretty full case in the 300 Win When I do it, but I also clocked 200 grain Speers at over 3000 fps, I just can't remember exactly.

I do use Weatherby data as a benchmark sometimes and just work up looking for pressure signs since it is often said the factories never loaded the 300 WinMag all that hot any way.

I have played with H 4831 SC in a 30/06 and have had the 200 Speers average about 2850 fps with no pressure problems, from a 26 inch barrel ( 1917 Enfield and a 1903 Springfield). I actually pushed the combo of H 4831 SC up to 66 grains before the primer pocket started to loosen up.

NOT that I do this to necessarily carry this in the field, I do like to know exactly where the upper limits are. I really feel with the right powder and the 30 caliber bore, the RUM case probably has some higher velocity potential.

As I also posted with the 35 Wyatt a local gunsmith acquaintance makes, he uses 100 grains of H 4831 SC and a 225 grain partition and chronographs that load at 3450 fps out of a 26 inch barrel.

Maybe some of that will give you some ideas.

Cheers and good shooting
seafire

quote:

a 225 grain 30 cal bullet out of a 300RUM.

Yup.

JonA:

Whose 225 grain bullet are you using?

cheers
seafire

180 gr Nosler Part,77gr RL22, F215M very accurate and mild load in all of our 300 Win Mag.

quote:

Originally posted by seafire/B17G:
Whose 225 grain bullet are you using?

I'm having them made by Richard Graves, Wildcat Bonded Bullets ( wildcatbullets@hotmail.com ).

But he made a liar out of me today when he told me he had jackets coming that could make the shape I wanted at 240 grains. So I'll be trying those instead of the 225's.

Jon A;

Keep us posted on how those turn out. I know you tried some of the 240 match kings.

thanks
seafire