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  #31  
Old 08-21-2019, 02:21 AM
Bayou City Boy Bayou City Boy is offline
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Originally Posted by coyotezapper View Post
The 4198's are way too fast for the 17R. You will not get a good fill before you are over pressured.

IMR4198 is my go to powder for the 17FB and 25 vmax.
Dang. Does this mean that I'm going to have to start all over with all of the other better powders that I've tried since the mid 1970's? And to think that I always went back to IMR4198 in roughly 15 different 17 Rem rifles?

Bummer.........

I've never tried shooting a 25 grain bullet in a 17 M4/17FB........... 20's work so much better in the little case.

JMO - BCB
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  #32  
Old 08-21-2019, 06:04 AM
coyotezapper coyotezapper is offline
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Originally Posted by Bayou City Boy View Post
Dang. Does this mean that I'm going to have to start all over with all of the other better powders that I've tried since the mid 1970's? And to think that I always went back to IMR4198 in roughly 15 different 17 Rem rifles?

Bummer.........

I've never tried shooting a 25 grain bullet in a 17 M4/17FB........... 20's work so much better in the little case.

JMO - BCB
I sense of bit of sarcasm in your post. That's fine we don't have to agree but let me ask you a couple of questions with your use of IMR4198 in the 17R.

1. What is your powder charge and bullet used? I would like to compare to what I found when testing. FWIW my testing is done measuring actual pressures.

2 If IMR4198 is so good in the 17R why does Hodgdon not show data for it in the 17R?
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  #33  
Old 08-22-2019, 02:19 PM
Bayou City Boy Bayou City Boy is offline
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Originally Posted by coyotezapper View Post
I sense of bit of sarcasm in your post. That's fine we don't have to agree but let me ask you a couple of questions with your use of IMR4198 in the 17R.

1. What is your powder charge and bullet used? I would like to compare to what I found when testing. FWIW my testing is done measuring actual pressures.

2 If IMR4198 is so good in the 17R why does Hodgdon not show data for it in the 17R?
I sensed a bit of an "all-knowing I'll save the internet" response based on ballistic programs in your response. I doubt that either of us is going to change the other's mind so why try?

1. I never give out load data to be misused by someone starting out who does't know better. (Hint: I'm not referring to you in that statement) Data for IMR4198 does exist and has for years.

2. You'll have to ask Hodgdon why they don't show IMR4198. They'll probably tell you that its too fast, as we both recognize.

I just know it works for me and has worked for me for years. And I've tried a lot of other powders. I've said many times that you won't get the best velocity from it but at 3900+ fps, I'm more interested in the accuracy that it consistently gives and has given me in a number of 17 Rem rifles. YMMV.

-BCB
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Women and cats will do as they please. Men and dogs should relax and just get used to the idea.

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  #34  
Old 08-23-2019, 03:16 PM
AlbertaAl AlbertaAl is offline
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Default H4198

I was curious enough that I had a peek at the burn rate chart to see where IMR4198 ranked.
Its right there with RL7 ... which is a very fast powder and very far up the list from H4895 that I use and even farther from Varget ...which is being used by others.
If anyone plans to use IMR4198 for 17R then I would proceed very slowly with powder increments while load building as results can change quickly.
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  #35  
Old 08-23-2019, 05:56 PM
Bayou City Boy Bayou City Boy is offline
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Originally Posted by AlbertaAl View Post
I was curious enough that I had a peek at the burn rate chart to see where IMR4198 ranked.
Its right there with RL7 ... which is a very fast powder and very far up the list from H4895 that I use and even farther from Varget ...which is being used by others.
If anyone plans to use IMR4198 for 17R then I would proceed very slowly with powder increments while load building as results can change quickly.
Isn't that what safe and accurate reloading is all about? Small incremental changes using a lot of variables can turn a load quickly in the small caliber world.


Any 17 or 20 caliber cartridge that I have ever loaded I have used 0.1 grain increments on the upper end of recommended charges and 0.2 grain increments on the beginning lower charges. Small caliber cartridge reach very steep and high pressure spikes/peaks very quickly in the ignition sequence.


-BCB
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I miss mean Tweets, competence, and $1.79 per gallon gasoline.

Yo no creo en santos que orinan.

Women and cats will do as they please. Men and dogs should relax and just get used to the idea.

Going keyboard postal over something that you read on the internet is like seeing a pile of dog crap on the sidewalk and choosing to step in it rather than stepping around it.

If You're Afraid To Offend, You Can't Be Honest - Thomas Paine

Last edited by Bayou City Boy; 08-23-2019 at 06:09 PM. Reason: information added................
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  #36  
Old 08-23-2019, 07:39 PM
AlbertaAl AlbertaAl is offline
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Originally Posted by Bayou City Boy View Post
Isn't that what safe and accurate reloading is all about? Small incremental changes using a lot of variables can turn a load quickly in the small caliber world.


Any 17 or 20 caliber cartridge that I have ever loaded I have used 0.1 grain increments on the upper end of recommended charges and 0.2 grain increments on the beginning lower charges. Small caliber cartridge reach very steep and high pressure spikes/peaks very quickly in the ignition sequence.


-BCB
we're just repeating ourselves here ...lol
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  #37  
Old 09-02-2019, 03:34 AM
AlbertaAl AlbertaAl is offline
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I recently read another article that discouraged the use of IMR4198 when there are so many more "better / safer" choices.
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  #38  
Old 09-03-2019, 01:23 AM
Bayou City Boy Bayou City Boy is offline
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Originally Posted by AlbertaAl View Post
I recently read another article that discouraged the use of IMR4198 when there are so many more "better / safer" choices.

I'm sure that you did......... They're everywhere.


-BCB
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I miss mean Tweets, competence, and $1.79 per gallon gasoline.

Yo no creo en santos que orinan.

Women and cats will do as they please. Men and dogs should relax and just get used to the idea.

Going keyboard postal over something that you read on the internet is like seeing a pile of dog crap on the sidewalk and choosing to step in it rather than stepping around it.

If You're Afraid To Offend, You Can't Be Honest - Thomas Paine

Last edited by Bayou City Boy; 09-03-2019 at 01:29 AM.
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