IMR powder vs Hodgdon powder on temperature sensitivities

[bullet]

maybe I'm just getting old. :roll:
Paul B.

Paul, I think you nailed it :mrgreen: :mrgreen: :mrgreen:

 

[DrMike]

Never had trouble shooting in the heat before but this year? Damned if I know why. maybe I'm just getting old. :roll:

There is a reason why I moved north.

 

[bullet]

Never had trouble shooting in the heat before but this year? Damned if I know why. maybe I'm just getting old. :roll:

There is a reason why I moved north.

I think it was more the opportunity to hunt a good variety of big game and the cool whether was just a plus, I could be wrong, but that would have been my motive, just saying.... :mrgreen:

 

[DrMike]

DrMike wrote:

Never had trouble shooting in the heat before but this year? Damned if I know why. maybe I'm just getting old. :roll:



There is a reason why I moved north.



I think it was more the opportunity to hunt a good variety of big game and the cool whether was just a plus, I could be wrong, but that would have been my motive, just saying.... :mrgreen:

Okay, Mike, you nailed me. I've been exposed. :grin: I do enjoy the cooler weather, however. Consequently, I have no difficulty using IMR powders, or Hodgdon; either works very well for me.

 

[bullet]

DrMike wrote:

Never had trouble shooting in the heat before but this year? Damned if I know why. maybe I'm just getting old. :roll:



There is a reason why I moved north.



I think it was more the opportunity to hunt a good variety of big game and the cool whether was just a plus, I could be wrong, but that would have been my motive, just saying.... :mrgreen:

Okay, Mike, you nailed me. I've been exposed. :grin: I do enjoy the cooler weather, however. Consequently, I have no difficulty using IMR powders, or Hodgdon; either works very well for me.

On your confession I agree :mrgreen: and on your comment concerning IMR and Hodgdon I also agree.

 

[DrMike]

And in that vein, Mike, the weather has turned cool, just in time for the opening of moose tomorrow. That should extend my day somewhat. I've worked like a slave to get ahead of things so I can take a couple of days off. Tomorrow morning (d.v.), I hope to be seated on a hill overlooking no name valley. If that fails to produce (as it has for many years), I'll traipse the opposite direction from town to stalk through a brushy area that has always held a number of moose. I have an invitation to thin the population on a farm in yet another direction from my home. Oh, the difficulty of being compelled to make choices.

 

[bullet]

And in that vein, Mike, the weather has turned cool, just in time for the opening of moose tomorrow. That should extend my day somewhat. I've worked like a slave to get ahead of things so I can take a couple of days off. Tomorrow morning (d.v.), I hope to be seated on a hill overlooking no name valley. If that fails to produce (as it has for many years), I'll traipse the opposite direction from town to stalk through a brushy area that has always held a number of moose. I have an invitation to thin the population on a farm in yet another direction from my home. Oh, the difficulty of being compelled to make choices.

May I help you make choices? Thin them out!! How is that for a choice, and you need me there at least for the fellowship (and of course my deep down motive is a desire to hunt moose in Canada) :mrgreen:

 

[DrMike]

And for the first time in many, many years, I'll be carrying factory ammunition. :shock: I could have carried my 325WSM loaded with 200 grain PTs. It is accurate and puts moose down with authority. I could have carried my 7WSM. Loaded with 160 grain ABs, it hits hard and nothing has ever escaped. The 350RM, loaded with 200 grain TSXs, the 35 Whelen loaded with 225 grain TSX or the 358 loaded with 200 grain TSX, all smite the critters to the ground. I proved the 7RM, loaded with 175 grain PTs, and it has taken many head of game across this province. There are always my 356s, loaded with either the 250 grain Kodiak or the 220 grain Speer Hot-Cor, each of which has taken the largest game the province has to offer. My 30-06, 280 and 260 are all shooting acceptably. However, the 338 Federal is the newest rifle in my arsenal. Though I haven't had opportunity to conduct load development, it shoots the Federal 200 grain Trophy Copper bullet into sub-MOA groups at 2700 fps. I likely will tote it afield in the morning. I suspect the moose population will be thinned. I'm taking a neophyte with me (RCMP sergeant who could get anything if I didn't hold his hand). Also, my trusty native guide has taken a couple of days off to join me. He is whining that he needs moose for his freezer, so I suspect that he will want to take a critter as well. It is a tough life, I tell you. :roll:

 

[bullet]

YEAH!!! Sounds like a tough life. :mrgreen:

 

[DrMike]

Come on up for a cuppa' coffee and a moose steak, Mike. You're welcome anytime. We are on the way to Alaska; you can't miss us. IMR powder still works here. :grin:

 

[bullet]

Come on up for a cuppa' coffee and a moose steak, Mike. You're welcome anytime. We are on the way to Alaska; you can't miss us. IMR powder still works here. :grin:

Man would I love to shoot a Canadian Moose with my Big 8 Just might have to see about that cup of coffee for next year in August :mrgreen: I am sure the IMR7828 in my load would work just fine. :mrgreen:

 

[Oldtrader3]

Bullet, IMR 7828 SSC is the fastest powder that I have tested in the .340 Weatherby which is pretty close to the 8mm Mag capacity-wise. I get about 3080 fps with the Nosler 225 Partition and 88.0 grains of 7828 SSC wih a Fed 215 MM primer. This about matches factory .340 Weatherby loads which is usually hard to do. Plus it shoots under MOA to at least 200 yards.

 

[bullet]

Bullet, IMR 7828 SSC is the fastest powder that I have tested in the .340 Weatherby which is pretty close to the 8mm Mag capacity-wise. I get about 3080 fps with the Nosler 225 Partition and 88.0 grains of 7828 SSC wih a Fed 215 MM primer. This about matches factory .340 Weatherby loads which is usually hard to do. Plus it shoots under MOA to at least 200 yards.

I am glad you brought this up about the 340Wby. Mine is awesome also and loves IMR7828. What I am so in awe about is my 8mm Rem mag driving a 200gr bullet almost as fast (3154fps with 200gr bullet) as the 300Rum drives a 200gr bullet and drives a 220gr 3018fps on average not to far off the 340Wby and I will be close to if not over 2800fps with a 250gr bullet. This 8mm Rem mag is like owning a 300Rum and 340Wby all in one cartridge and rifle.

 

[Oldtrader3]

If I had not found a .340 which I liked, I was strongly considering the 8mm Rem Mag as a runner up after I sold my last .338 Win Mag. Any magnum length case of medium bore that can throw a 220 or 225 grain bullet with high ballistic coefficient over 3000 fps, has my attention for all medium and up, North American game.

 

[bullet]

If I had not found a .340 which I liked, I was strongly considering the 8mm Rem Mag as a runner up after I sold my last .338 Win Mag. Any magnum length case of medium bore that can throw a 220 or 225 grain bullet with high ballistic coefficient over 3000 fps, has my attention for all medium and up, North American game.

I hear ya Oldtrader, I hear you indeed.

 

[Antelope_Sniper]

Horsethief. If you chronograph enough, one think you learn is that ALL powders are temperature sensative. Even with H4831 you can see a 100 fps difference between 70 and 100 degrees, and another 100 fps differnece between 70 and freezing. Now I find that H4831 groups well across a wide range of temperatures, but to says it's velocity is not temp sensative is a Myth.

 

[bullet]

Horsethief. If you chronograph enough, one think you learn is that ALL powders are temperature sensative. Even with H4831 you can see a 100 fps difference between 70 and 100 degrees, and another 100 fps differnece between 70 and freezing. Now I find that H4831 groups well across a wide range of temperatures, but to says it's velocity is not temp sensative is a Myth.

Yes, and it needs to be said so the myth can be exposed. Well said and are you ever right about ALL powders being temperature sensitive in to some degree, and those of us who have spent many hours at the bench working up loads all year round know this to be true.

 

[Oldtrader3]

Like I said, Avogadro may have been old and his fomula complicated but not stupid!

 

[bullet]

Understatement - the volume of a gas (at a given pressure and temperature) is proportional to the number of atoms or molecules regardless of the nature of the gas.