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Unburned powder in the bore, 300 rook (Read 1338 times)

bobw Frequent Elocutionist Offline Posts: 1459 Location: NW, Iowa Joined: Mar 19^th, 2013	Unburned powder in the bore, 300 rook Feb 5^th, 2023 at 8:04pm	Print Post
	Been working on getting a rook rifle chambered in 300 rook shooting. I have started with 7 1/2 grains of 4227 using BACO bullet. I’m see what appears to be unburned powder in the bore. I push a cleaning patch through it and it sure looks like power that comes out on a paper towel. Any help on what is going on? Bob

	Robert Warren
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marlinguy Frequent Elocutionist Offline Ballards may be weaker, but they sure are neater! Posts: 16077 Location: Oregon Joined: Feb 2^nd, 2009	Re: Unburned powder in the bore, 300 rook Reply #1 - Feb 5^th, 2023 at 8:34pm	Print Post
	4227 in that small case will always leave powder residue in the bore. I'd switch to a faster powder like Unique, Red Dot, or Bullseye. Load data for .32 S&W Long works well when I had my Martini Rook rifle in the .300 Rook.

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bobw Frequent Elocutionist Offline Posts: 1459 Location: NW, Iowa Joined: Mar 19^th, 2013	Re: Unburned powder in the bore, 300 rook Reply #2 - Feb 5^th, 2023 at 9:02pm	Print Post
	Thanks Vall, I was wondering if that wasn’t the issue. It’s a load that I had seen as a recommended start so I tried it. I’ll take a look at some loads using those other powders. Bob

	Robert Warren
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Grumpy gumpy Full Member Offline Posts: 214 Location: australia Joined: Jul 6^th, 2016	Re: Unburned powder in the bore, 300 rook Reply #3 - Feb 5^th, 2023 at 9:44pm	Print Post
	I found with my cadet and adi 2205(same powder) that a lite crimp helped with combustion. I used a 32-20 crimp die and a small piece of aluminium to get the right height Gumpy


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Cbashooter Frequent Elocutionist Offline Posts: 1569 Location: Eastern Wa. Joined: Mar 31^st, 2018	Re: Unburned powder in the bore, 300 rook Reply #4 - Feb 5^th, 2023 at 9:57pm	Print Post
	Grumpy gumpy wrote on Feb 5^th, 2023 at 9:44pm: I found with my cadet and adi 2205(same powder) that a lite crimp helped with combustion. I used a 32-20 crimp die and a small piece of aluminium to get the right height Gumpy I also modified a 32-20 FCD for my cadet. I found as you did it helped with the slower pistol powders. good to hear I wasn't the only one with the results.


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craigster Oldtimer Offline Posts: 683 Location: lost coast CA Joined: Feb 20^th, 2011	Re: Unburned powder in the bore, 300 rook Reply #5 - Feb 5^th, 2023 at 10:36pm	Print Post
	I use Universal Clays in my 310, no unburnt powder. Unburnt powder in you barrel is not the end of the world.


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Grumpy gumpy Full Member Offline Posts: 214 Location: australia Joined: Jul 6^th, 2016	Re: Unburned powder in the bore, 300 rook Reply #6 - Feb 5^th, 2023 at 10:58pm	Print Post
	Cbashooter wrote on Feb 5^th, 2023 at 9:57pm: Grumpy gumpy wrote on Feb 5^th, 2023 at 9:44pm: I found with my cadet and adi 2205(same powder) that a lite crimp helped with combustion. I used a 32-20 crimp die and a small piece of aluminium to get the right height Gumpy I also modified a 32-20 FCD for my cadet. I found as you did it helped with the slower pistol powders. good to hear I wasn't the only one with the results. I didn’t modify mine as I also have a 32-20 that I use it with Gumpy


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Cbashooter Frequent Elocutionist Offline Posts: 1569 Location: Eastern Wa. Joined: Mar 31^st, 2018	Re: Unburned powder in the bore, 300 rook Reply #7 - Feb 5^th, 2023 at 11:54pm	Print Post
	Grumpy gumpy wrote on Feb 5^th, 2023 at 10:58pm: Cbashooter wrote on Feb 5^th, 2023 at 9:57pm: Grumpy gumpy wrote on Feb 5^th, 2023 at 9:44pm: I found with my cadet and adi 2205(same powder) that a lite crimp helped with combustion. I used a 32-20 crimp die and a small piece of aluminium to get the right height Gumpy I also modified a 32-20 FCD for my cadet. I found as you did it helped with the slower pistol powders. good to hear I wasn't the only one with the results. I didn’t modify mine as I also have a 32-20 that I use it with Gumpy Ooo.I shortened a 32-20 fcd to.work with cadet cases.


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bobw Frequent Elocutionist Offline Posts: 1459 Location: NW, Iowa Joined: Mar 19^th, 2013	Re: Unburned powder in the bore, 300 rook Reply #8 - Feb 6^th, 2023 at 11:44am	Print Post
	Thanks everyone, I’ll be working on this again later this week.

	Robert Warren
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CharleHunter Senior Forum Member Offline Posts: 363 Joined: Feb 8^th, 2019	Re: Unburned powder in the bore, 300 rook Reply #9 - Feb 7^th, 2023 at 3:11am	Print Post
	Out of necessity here in Australia, and like Gumpy, find unburnt powder in my barrel. Given my rifle shoots well, I don't care about the unburnt powder. is it the appropriate burning rate? Probably not but without the 4227/ AR2205 I could not shoot it ar all


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85lc Junior Member Offline Posts: 50 Location: Georgia Joined: Jun 28^th, 2018	Re: Unburned powder in the bore, 300 rook Reply #10 - Feb 13^th, 2023 at 12:28pm	Print Post
	What loads do you use for Unique and Bullseye? The two loads I tried with 80 gr BACO bullets are as follows For Unique, I have tried 4.5 gr For Bullseye, I used 2.4 gr.

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oneatatime Frequent Elocutionist Offline Posts: 3865 Location: Rocky Mountains Joined: Oct 30^th, 2011	Re: Unburned powder in the bore, 300 rook Reply #11 - Feb 13^th, 2023 at 3:55pm	Print Post
	I use 3.3 grains of AA 5.


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marlinguy Frequent Elocutionist Offline Ballards may be weaker, but they sure are neater! Posts: 16077 Location: Oregon Joined: Feb 2^nd, 2009	Re: Unburned powder in the bore, 300 rook Reply #12 - Feb 14^th, 2023 at 9:28am	Print Post
	85lc wrote on Feb 13^th, 2023 at 12:28pm: What loads do you use for Unique and Bullseye? The two loads I tried with 80 gr BACO bullets are as follows For Unique, I have tried 4.5 gr For Bullseye, I used 2.4 gr. It really depends on the rifle/action for my loads. In an older weaker action I use 4.3 grs. of Unique with a 100 gr. bullet, but in a strong action I've gone as much as 5.5 grs. with the same 100 gr. bullet. That's a 1500 fps load in the higher charge. With Bullseye I'm only loading lighter loads at around 2.5 grs.

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Redrighthand Full Member Offline Posts: 204 Location: New Liberty Iowa Joined: Jan 24^th, 2021	Re: Unburned powder in the bore, 300 rook Reply #13 - Feb 19^th, 2023 at 4:44pm	Print Post
	That happens to me with several stick powders. I just don't look at it anymore and it doesn't bother me a bit now.

	Mike Brooks
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bobw Frequent Elocutionist Offline Posts: 1459 Location: NW, Iowa Joined: Mar 19^th, 2013	Re: Unburned powder in the bore, 300 rook Reply #14 - Feb 19^th, 2023 at 6:33pm	Print Post
	I’ve come to the same conclusion Mike. Tried some other loads but it shoots to good with the 4227 so sticking with it.

	Robert Warren
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