150 is the max less 15% that would be 135 grains.thank u!

You never did say what gun you have. Max load is sometimes different for pellets and loose powder. Knights for example (don't know about their revolutions and the older guns are only rated to 120 loose) are rated for 120g loose powder and 150 in pellets. The owners manual should tell you for sure.

Depending on what rifle you have.. that would answer that question. Some of the rifles allow 120 grains of loose as a max load in 2f. Some such as the BPI barrels and older inlines I think had a 100 grain max load limit.Again in 2f grade. When youincrease to the 3f grade you increase the barrel pressures. The usual number thrown around is 15% decrease in charge strength when changing from the 2f to 3f.

Also the length of your barrel will make a big difference. If your shooting a 22" barrel there is no need to shoot over 120 grains of anything because you are wasteing it. If the barrel I believe is 28" it will manage to burn off 150 grains of powder.

So to answer you question I will say NO! it is not save to shoot 150 grains of loose American Pioneer Powder especially the FFFg grade. I would keep the loose powder 3f charge around 100-120 MAX. In 2f and pellet form the go ahead and shoot 150 grains. If your rifle allows such loads.

Do not be surprised if your accuracy flys out the window as fast as your money, shooting those large charges of powder. Especially when shooting pellets.

What kind of rifle are you shooting? I do not remember reading it in the posts... Good luck with your rifle.

348 Grain if you use Powerbelts..............

cayugad! i have thomson center omega 28" stainles steel barrel.thank u!

Asianhunter... you have an excellent rifle. One of the very best on the market. It is Stainless Steel. Your rifle will shoot 150 grains of powder anyway you want to put it in. If your shooting 3f powder I would limit the loose powder charges to 120 grains of loose powder just because of the increase in barrel pressures that 2f-3f conversions produce. Whether they actually do produce these differences I could not say. I never put them over a chronograph. But better to play it on the side of safe.

Some excellent long range projectiles for your rifle would be 120 grains of loose powder and a 250 grain Shockwave. With that load you should have all the power you need to make a 200 yard kill. If you want, you could also shoot 3 50 grain pellets with the same projectile and have similar results. Both will get the job done.

Good luck with that rifle. You sure got a good one there...

No I would not consider 150 grains of FFFG (3FG) a safe load in most all "Magnum" MLs. There are a few custom ML's that are supposedly rated for higher loads.

Ensure you verify for your particular rifle first.
Safe estimates for the 150gr "Magnum" 50 cal ML's:
Up to 150grains FFG Max
Up to 120-125 grains FFFG Max (Accounts for about a 15% powder reduction).

With 3FG, you will find that around 120 grains powder is about all you can stand for sighting in. That's of course if that much powder will even be accurate. The best way to tell is by starting out moderate at say 70-80 grains 3FG and see how things print. Then bump up if you wish.

Also, the 300gr XTP comes in two flavors, the standard 44 cal (.430"and the XTP MAG which is tighter fitting (.452" Black Sabot). You will find that the standard 44 cal XTP (Green Sabot) will eventually skip the rifling if you push them too fast.

m2c

You may wish to check your math.

15% of 150 is 22.5.

Subtract 22.5 from 150 equals 127.5.

Round down to 125gr 3FG.

yeh mysubtraction is wrong!

asianhunter: I know you are new to this sport as you said so in another site post. I have the same rifle stainless Omega synthetic stock. I think you will find that you do not need to load anything near those maximum loads to get the job done. Unless you are planning on shots exceeding 150 yards anything over 100gr. of any of the powders is just overkill. I hunt elk and consistently shoot completely through the chest (as long as bone is missed) with 90 gr. of Black Mag'3 and 300gr. SST bullets. I did the same with 90gr. Pyrodex and a 295gr. Powerbelt aerotip. These shots were at less than 100 yards and the elk were fair sized cows. Still way bigger and tougher than any deer. I have had very good luck with Black Mag'3 although it is difficult to find in many areas. Most Omega owners seem to love the way it works in the Omega. Tripple Seven does not work very well in my Omega as it forms a real bad crud ring which makes second loads very difficult or impossible. I would start with Pyrodex either loose or pellets as a lot of the initial development of the Omega was done with Pyrodex from what I have been able to find out. It is also easier to find than most of the rest. It is pretty dirty but as long as you follow the normal shoot, spit patch , dry patch, reload and shoot it works just fine.