rodb
Junior Member
Posts: 58 
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Post by rodb on Nov 5, 2016 19:31:47 GMT -5
Guys, I have recently been shooting my Hankins/700 spml with a Brux 1:20 X 28.5 long heavy contour barrel topped off with a NF 8-32 NXS scope. I have learned a lot from you guys as I read through old posts. I am having great results with Kyles 275gr AMax and about any charge of H4198 from 65 to 75 gr. My question for the experts is why does one lb of my powder have black kernels and one lb has green? Both are in identical containers and the kernels are the same length of around .060 long. I also have a lb of IMR4198 that has black kernels of about .075 long. I haven't used either 4198 for years so I have no idea how old they are but the green variety makes about 50 fps more speed when I shot it back to back today with the black stuff. I shot a few one holers with each type so I'm not sure why color even maters. I'm just curious I guess. Has Hodgdon changed colors over the years and maybe I have an old lb and a newer lb? Or maybe I'm just going color blind. Thoughts anyone?
Rod
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Post by Richard on Nov 5, 2016 20:13:13 GMT -5
My last eight pounds of H-4198 I bought about 6 mo. ago was the greenish/grey color. I had a jug from back in the mid 90's and it was also the same color. It has been only the IMR version that is dark..........to the best of my knowledge?
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rodb
Junior Member
Posts: 58
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Post by rodb on Nov 6, 2016 16:44:14 GMT -5
Thanks Richard. I'm wondering now if maybe I haven't gotten some IMR poured into a Hodgdens jug somehow. Over the years I've managed to do this a few times when emptying out my Harrels. I'm needing to buy more powder and was trying to decide which variety shoots best in my gun. My local guy has IMR so I will just start with that and see how it works. I will be working up loads for my 325 A Max next and will start with the 3031 but I see where the N133 is the next slower on the burn rate list and I have several 8lb jugs of this powder. Any body having any luck with N133 for the 325 weight Bullets? BTW I read about your double loading and appreciate you reminding us that S--- happens when we do things out of our normal routine or otherwise let ourselves get distracted. Glad it turned out well. I have done this several times with BP and round balls in competitions over the years. It's embarrassing but with these SPML bad boys it's serious stuff.
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Post by Kyle on Nov 6, 2016 17:14:02 GMT -5
Guys, I have recently been shooting my Hankins/700 spml with a Brux 1:20 X 28.5 long heavy contour barrel topped off with a NF 8-32 NXS scope. I have learned a lot from you guys as I read through old posts. I am having great results with Kyles 275gr AMax and about any charge of H4198 from 65 to 75 gr. My question for the experts is why does one lb of my powder have black kernels and one lb has green? Both are in identical containers and the kernels are the same length of around .060 long. I also have a lb of IMR4198 that has black kernels of about .075 long. I haven't used either 4198 for years so I have no idea how old they are but the green variety makes about 50 fps more speed when I shot it back to back today with the black stuff. I shot a few one holers with each type so I'm not sure why color even maters. I'm just curious I guess. Has Hodgdon changed colors over the years and maybe I have an old lb and a newer lb? Or maybe I'm just going color blind. Thoughts anyone? Rod If there is any possibility the powder is mixed or mislabeled I would discard it asap. |
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rodb
Junior Member
Posts: 58
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Post by rodb on Nov 6, 2016 17:25:52 GMT -5
Kyle,that's a good plan. To be safe with my new toy I've started low with both flavors and always shoot with my magneto speed V3 attached. So far I've not gone above 2900 with a 275 A Max. I think I'm seeing more group spread from bullet fit than powder types. If you were going to go with just one variety of 4198 which would you choose?
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Post by scallop on Nov 6, 2016 19:37:16 GMT -5
I have purchased H4198 (all within the last 4 years) that have had black kernels and green kernels. I am not sure why the change of color between containers. I have shot both colors with no problems. Both accuracy and velocity remained consistent.
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rodb
Junior Member
Posts: 58
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Post by rodb on Nov 6, 2016 21:55:48 GMT -5
I have purchased H4198 (all within the last 4 years) that have had black kernels and green kernels. I am not sure why the change of color between containers. I have shot both colors with no problems. Both accuracy and velocity remained consistent. Scallop, that's weird but makes me think maybe they have switched the colors of this powder over the years. I have never seen this before with other powders. |
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Post by hunter on Nov 6, 2016 22:02:54 GMT -5
You might try to call hogden to see if they have had any color variations in their 4198.
Since they bought imr maybe they went to their formula
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Post by Richard on Nov 6, 2016 22:34:57 GMT -5
rodb...............I have stuck with H-4198 only because it flows better thru my Harrell's measure. I have tested both side by side and they shoot about the same. If it were me, I would get a 1 lb. of H-4198 and test both powders side by side at the same time and compare results. It would be a shame to just toss perfectly good powder at the price it cost today.
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rodb
Junior Member
Posts: 58
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Post by rodb on Nov 6, 2016 22:57:21 GMT -5
rodb...............I have stuck with H-4198 only because it flows better thru my Harrell's measure. I have tested both side by side and they shoot about the same. If it were me, I would get a 1 lb. of H-4198 and test both powders side by side at the same time and compare results. It would be a shame to just toss perfectly good powder at the price it cost today. I'm going to just watch my speeds and stay safe. I'm getting good standard deviations with both colors of my H4198 too. I shot 15 groups yesterday with 4 different bullets and my worst sd was 18fps with 10 groups of 10fps or less. My 284 win. F class rifle doesn't shoot much better standard deviations than this. My best groups have been under 1/2moa @ 100 yds. With just a few bigger than 1moa. My only disappointment so far was with some 250 SSTs that keyholed. I'm thinking they need to be launched harder than 2731fps with 65gr of H4198. I'm loving this rifle! |
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yule
New Member
Posts: 26
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Post by yule on Nov 7, 2016 7:03:25 GMT -5
I have noticed the same thing. Some black, some green....
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