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and for shizt and giggles i ras a 243 with 95gr sierra match kings that I worked up a load in 30 degree weather, and just shot it through crony today and the temp is 79 degree and it clocked 42fps faster, that's not very temp sensitive to me
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Joined: Aug 2005
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Campfire Ranger
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Campfire Ranger
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I must be lucky...
I never experience all sorts of stuff other campfire members seem to experience...
Then I don't zero a rifle in a low temp and then use it in a much higher temp or vice versa...
I zero it right around the time of year I will be carrying it afield...
And for someone who thinks RL 19 is the most insensitive temp powder they've used,
they evidently have never tried H 335 in anything... If you don't shoot throughout the year and only hunt in your locale in similar conditions or don't shoot at long distances, you'll never notice, which is why I said 95% of folks never will, which you are a part of obviously... Your H335 comment, which seems to be in response to my post - why don't you try reading my entire post again, which references H335 amongst others? I myself shot long range and do it every day of the year and I use RL19 in both spring,summer fall and winter here in PA. I sure don't see problems like you have, must be where I live or where you live. I think, muledeer can likely speak to this, they changed the formula due to the temperature issues over time. I'm sure it is better these days but Alliant doesn't tout it as temperature insensitive to this day. I'm really gun shy. IMO, in today's world of powders, there is no reason at all to even mess with powders that are not temperature tolerant....
- Greg
Success is found at the intersection of planning, hard work, and stubbornness.
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Joined: Aug 2005
Posts: 15,647
Campfire Ranger
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Campfire Ranger
Joined: Aug 2005
Posts: 15,647 |
and for shizt and giggles i ras a 243 with 95gr sierra match kings that I worked up a load in 30 degree weather, and just shot it through crony today and the temp is 79 degree and it clocked 42fps faster, that's not very temp sensitive to me Not much of a range there. Not sure 79 will tell you much on the top end regardless. That's nowhere near "hot"....
- Greg
Success is found at the intersection of planning, hard work, and stubbornness.
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Joined: Nov 2005
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Campfire Outfitter
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Campfire Outfitter
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and for shizt and giggles i ras a 243 with 95gr sierra match kings that I worked up a load in 30 degree weather, and just shot it through crony today and the temp is 79 degree and it clocked 42fps faster, that's not very temp sensitive to me Not much of a range there. Not sure 79 will tell you much on the top end regardless. That's nowhere near "hot".... well warmer days are coming here in PA, will retest when it gets hot, I been useing RL19 for over 20 years without a problem, I agree 46 degrees is not a big change I could lay them on the dashboard of the truck in the sun and retest, that will heat it up
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Joined: Aug 2005
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Campfire Ranger
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Campfire Ranger
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Be curious what you find....
- Greg
Success is found at the intersection of planning, hard work, and stubbornness.
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I use in my 6mm rem , it's my go to powder.
Well we're Green and we're Gold, and we play better when it's cold. All us Cheese heads have our favorite superstar. We love Brett Favre.
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Joined: Nov 2005
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Campfire Outfitter
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Campfire Outfitter
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Be curious what you find.... just put two rounds in the truck will let them there for about 30 minutes in the sun, I'll hit them with surface temp reader and shoot them when they cool off to 100
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Campfire 'Bwana
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Campfire 'Bwana
Joined: Jun 2004
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The temp of the rifle plays a big part too.
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Joined: Dec 2012
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Campfire Regular
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OP
Campfire Regular
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"Political Correctness is a doctrine, fostered by a delusional, illogical minority, and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a turd by the clean end."
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The temp of the rifle plays a big part too. I know that's why I placed the rifle in the truck too, after about a hour I took both out and waited to the ammo cooled to 105 degrees, fired over the crony and average fps with 2 rounds were only 69fps over the worked up load in 30 degree weather, and I'm already running hot on this load of 46.5grs of RL19 and sierra 95gr matchking, remington 9 1/2 primer, winchester case and bullet seated with bolt closing, no flat or crater primers, no heavy bolt lift, no ejector marks and the two rounds I fired touched at 100 yards.
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Joined: Aug 2005
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Campfire Ranger
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Campfire Ranger
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- Greg
Success is found at the intersection of planning, hard work, and stubbornness.
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Joined: Nov 2005
Posts: 10,365
Campfire Outfitter
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next sunny day we have, raining today I'm going to try this with Varget and see what happens
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do t get the 200fps difference that you experience in your 7mm08
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Campfire 'Bwana
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Campfire 'Bwana
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next sunny day we have, raining today I'm going to try this with Varget and see what happens Temp sensitivity varies with cartridge. I *think* Varget was tuned around 308 use, so the farther away you get from that the less ideal it may be.
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Campfire Ranger
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Campfire Ranger
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Maybe RL19 is yesterday's news? Not in my powder stash.
"I never thought I'd live to see the day that a U.S. president would raise an army to invade his own country."
Robert E. Lee
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OP
Campfire Regular
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That's what I was thinking.
"Political Correctness is a doctrine, fostered by a delusional, illogical minority, and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a turd by the clean end."
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did a test using Varget yesterday, since mathman said that Varget was tuned around the 308, I used a 308 for this test, fortunately I don't have cold weather chronograph reading from any of my 308's so I had to place it in the freezer for cold weather and place it in the hot truck to raise it to 100 degrees, the results were more different than RL 19 , between cold and hot there was only 31fps difference, 1/2 of what RL19 was.
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Campfire Regular
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OP
Campfire Regular
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Well how about that. Thanks for running those numbers. Pretty interesting stuff. Could be a lot of truth to the consensus. Even at that,I expected more variation within the RL19 test. I don't think I would loose much sleep worrying about it. The Varget performed true to its reputation .
"Political Correctness is a doctrine, fostered by a delusional, illogical minority, and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a turd by the clean end."
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Joined: Dec 2002
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Campfire Ranger
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Campfire Ranger
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The temp of the rifle plays a big part too. The temp of the barrel plays a huge part. Testing with early production RL25, 264 Win Mag, and 140 gr parttions, attempting to reach that mythical 3200 fps (about the worst combination imaginable). I saw velocities jump from 3050 fps to near 3300 with blown primers and expanded case heads in a 3 shot string. No such problems with H 1000.
People who choose to brew up their own storms bitch loudest about the rain.
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Campfire Outfitter
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sure won't miss a deer at 100 or 200 yards between hot and cold weather
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