After long research I made a decission to buy Sako 75 in .300WM.
Now, I need a help.
What is the best loads for 180 grain bullet for you.
The twist of that barrel is 1-11".

I am looking at something what will give me little bit more velocity and energy.
What you guys think about Retumbo powder?

Thanks for any comments

Peter

i use Lapua brass in my 06 and get 50 plus reloads from a case and i run my 06 at pressures of 60-65,000 psi.....to put it simply ...it is the best brass by far
daniel

sorry guys ...wrong posting
daniel

RL22 has been my powder of choice for the cartridge/bullet combination you mention. A max load out of the books usually does it for me for hunting.
- mike

What do you want to use the specific load for? Critter-type, target type?

Shoot what you want but RL-22 will serve you best in speed and accuracy. My Model 70 Winchester likes 78 grains of RL-22 with a Fed 210M primer for the 180 grain bullets. I have tried all the bullets and two stand out, the North Fork and the Nosler Partition and with this load they will get me an average of 3100 fps. Your barrel will tell you what it likes, shoot it enough to find out. Good luck and good shooting.

I tried to get Retumbo to work with 200 grain Accubonds and while the velocity was great, I ran into pressure signs well before book max. Also couldn't get it to group worth.... Anyway, I don't think you are going to be able to comfortably put enough Retumbo in the case to get what you want out of a 180 grain bullet. If you want to stick with Hodgdon powders try H1000 and H4831 in that order. If you are not picky about brand then try the two mentioned above or IMR 4831, IMR 7828 or RL22. If you do enough research on this topic, you will find that RL22 is the hands down favorite. Personally I use IMR 4831 behind by 180 grain projectiles.

Good luck.

After trying several others, I settled on AA 3100.

Started low and worked up to the max book load (72 grains) with the Nosler 180 BT.

Started with CCI 250 and found better groups with WLR primers.

It'll go into 3/4" on a good day when I'm doing ALL of my part, but under 1" just about every day.

I pretty much shoot 220 grain bullets in mine. Either the Sierra/Hornady 220 grain round nose or the Nosler 220 grain Semi Spitzer partition.

My load is 83.5 grains of H 1000 ( work up as this is overload in newer reload manuals) with Federal 210 primers, or Winchester Large Rifle primers. MV is just short of 3000 fps. Never broke 3K but it is pretty consistently around 2975 fps.

Accuracy has been coverable with a nickel or quarter at most, when I am doing my part at 100 yds. Rifle is a Browing A Bolt.

Cheers and Good shooting
seafire

Peter Pan. Consider trying the 200 and 220 gr. bullets that are available. This BS that 1 in 11" and 1 in 12" won't stabilize the heavier bullets is just that, B.S.!
Point in facts. I have a 30-06 with a 1 in 12" twist barrel. At the max load for my rifle, I get groups of 1.0" at 100 yards. Velocity is right at the 2500 FPS range. (I admit it's one hell of a hot load.) My Winchester M70 in .308 comes from the factory with a 1 in12" twist. max velocity is only 2300 FPS, but groups rrun from a .375" to .75" with .75" being cloaser to the norm. A 220 gr. bullet (I use the Sierra) at .300 Win. mag speeds should be one hell of a thumper. Round nose bullets should do OK, but spitzer types, maybe, maybe not. I'd try them in my .300 Mag. rifles, but they both have 1 in 10" twists.
Anyway, give them a try. It won't bankrupt you and you might be surprised at the results.
Paul B.

Not agreeing or disagreeing here, but you look on Lilja's web site and they state a 1-11" will stabalize a 220 grain bullet. Yes, depends on the length of the bullet and different rifles have different tastes. Can't hurt to try a 200 grain bullet though. I, like sakofan haven't found satisfactory results from the 200 accubond. Accurate at times but not consistant. 200 SMKs and 200 partitions are excellent though, and the bullets are shorter than the accubonds.

RL22, H4831SC, and H1000 powders are excellent. Had my best results with H4831SC and 200 grain bullets. Try RL22 first with the 180s.

I am shooting a Tikka T3 with a 1-11" twist 24 3/8" barrel.I have tried IMR 4831,7828 with 180gr BTSP& accubonds.I did'nt get a group under an inch until I shot 150&165gr bullets with IMR 4350.I am tracking down some rl22 now and I will be tring the accubonds again.

RuttinBuck,

H4831SC did wonders with the 200 accubonds. don't count that powder out. It did much better than RL22. I don't shoot the accubonds because they aren't as consistant as other bullets I shoot, but they will group .5" in my rifle on good days. Also, I never had problems with copper fouling till I used the accubonds.

Ruttinbuck, My Tikka 300WSM T3 likes 62.3gr's of W760 with the 200gr Accubond, the Nosler manual puts this load at about 2900fps. The Tikka T3 Lite also likes Reloader 19 with 168gr TSX, don't know about 180gr Accubonds but I would go to the Reloader 19 myself. The thing that has frustrated me with the Tikka T3 Lite 300WSM is that it has a mile of free bore!! this make figuring O.A.L. a real challenge. I have found the best accuracy by adjusting the action screw torque to 25"lbs at the tang end and 30"lbs at the FWD action screw then using a cartridge O.A.L. of 2.779 200gr Accubond 62.3 gr W760. Can't wait to trade this baby in for a 300WSM I can actualy get some where's near to the lands! Best of Luck!

North Sniper.
I know what you mean luckily in my 300 winmag the magazine limited COL of 3.34-3.36" is really close to the lands.I am getting some accuracy with the 165gr at that length,and with the 180gr accubonds at 1.3",I'm sure with more tinkering I can get that bullet to group tighter I have'nt tried RL22 yet.I just have to beat the heavy copper fouling problem.
I just put some JB bore paste through the bore and it feels alot smoother when I patched it out after with hoppes.

Try Wipe-out. Never seen anything get copper fouling out like that stuff.

300 winnie.
I am using wipeout as I type.It works wonders,the problem is how fast I lose accuracy due to copper fouling.I can't put wipeout in at the range as it takes time to work.I put 20 rounds through my rifle this AM and stopped at 10 to sweets treat the bore to keep the accuracy up for the second 10 rounds.If I keep shooting I lose accuracy at 16-18 rounds{at least I did with Hornady bullets}I shot IMR 7828 under 165gr nosler baltips with fed 215pr.I have 3 in .45" at 76gr or 3025 fps+/-.This may be the preliminary results of a deer load.I have some RL22 on its way but will not get it until the 22nd of may.

Ruttinbuck, I cleaned after every shot for the first 40 shots or so then slowly decreased.I cleaned mostly with hoppes #9 occasionaly with Barnes CR-10. My 300WM and my 300WSM both have bores smooth as a baby's ass now and amaze me how many rounds I can shoot now without cleaning. I think the regular and frequent cleaning early in the life of the barrel might be the key.

Not counting some excellent 180 gr. factory loads featuring Winchester Fail-Safe and Trophy Bonded bullets, I've been shooting handloaded 180 gr. Nosler Partitions in the .300 Win. Mag. almost exclusively since 1994.

My current .300 Win. Mag. rifles are a pair of near-identical custom jobs built on Model 70 actions with 24" Kreiger barrels. I have the same handload worked up that functions the same and shoots with the same accuracy in both rifles. I can grab either rifle and a box of shells and go hunting.

This recipe is the 180 gr. Nosler Partition Protected Point, new Winchester cases, Federal 215 primers, Reloader 22. I get 3075 fps. out of these rifles with this load, and I have them zeroed for 250 yds.

I've shot everything from Coues deer to elk with 180 gr. Nosler Partitions, as well as African stuff as small as dik dik and as big as eland. For the life of me, I can't see the need for anything heavier than strong 180 gr. bullets in this cartridge. I works on just about everything....

AD