I was just checking my targets from Homestead yesterday and got a surprise. I shot a 3/4" group at 200yd. yesterday with my 7mm Weatherby Mag with 168 gr. Bergers over 66gr. of the IMR 4831. Previous best was a 2 1/8" with 70.5gr. of H4831sc. I guess I need to duplicate it now.
Imr 4831
- Thread starter ffwd
- Start date
Qc_BearHunter
CGN Regular
- Location
- Pont-Rouge, Qc
In my 270 win. 54 Grain of IMR 4831 under a 150 Hornady SP results in three holes almost touching at 100 yards almost every time. Best all around load in my new model 70 Featherweight.
Last edited:
- Location
- In the middle of gopher country
I'm sad......
When I started reloading the first 4831 I bought was $0.75/lb. It came in a brown paper bag that was filled from a 45 gal or 420 liter paper sided barrel.
When I started reloading the first 4831 I bought was $0.75/lb. It came in a brown paper bag that was filled from a 45 gal or 420 liter paper sided barrel.
I've always preferred IMR 4831 for my .270 loads.
group from my Ruger #1
group from my Tikka T3 (7 shots)
The same load was fired from both rifles on the same day.
56.0 IMR 4831, new WW brass, WLR primer, Remington bulk 130 grain bullets.
2.848" to bullet ogive measured with Stoney Point tool
group from my Ruger #1
group from my Tikka T3 (7 shots)
The same load was fired from both rifles on the same day.
56.0 IMR 4831, new WW brass, WLR primer, Remington bulk 130 grain bullets.
2.848" to bullet ogive measured with Stoney Point tool
shootist22-250 said-----"I'm sad......
When I started reloading the first 4831 I bought was $0.75/lb. It came in a brown paper bag that was filled from a 45 gal or 420 liter paper sided barrel."
Damn, you had to pay a lot for that powder! A group of us once chipped in and bought a 50 pound keg from a wholesaler for $18. We then bagged it up equally to each of us.
I still have some of it. When Hodgdon came out with newly manufactured 4831, they stated you could use the same loading data, as with the old war surplus. I loaded up the 270 with 130 grain bullets, using the old stand by charge of 60 grains. Loaded five of each powder, everything else the same.
The old war surplus powder averaged 100 feet per second faster than the new powder. Also, there was only about half the spread with the old powder.
One of these times I will redo the experiment, to see if the old powder has deteriorated.
When I started reloading the first 4831 I bought was $0.75/lb. It came in a brown paper bag that was filled from a 45 gal or 420 liter paper sided barrel."
Damn, you had to pay a lot for that powder! A group of us once chipped in and bought a 50 pound keg from a wholesaler for $18. We then bagged it up equally to each of us.
I still have some of it. When Hodgdon came out with newly manufactured 4831, they stated you could use the same loading data, as with the old war surplus. I loaded up the 270 with 130 grain bullets, using the old stand by charge of 60 grains. Loaded five of each powder, everything else the same.
The old war surplus powder averaged 100 feet per second faster than the new powder. Also, there was only about half the spread with the old powder.
One of these times I will redo the experiment, to see if the old powder has deteriorated.
