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Posted: 4/2/2013 5:55:22 PM EDT
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I recently bought a Chrony F-1, and ran my most common .223 loads over it today. It's interesting, how test data differs from RCBS load data, and good to know. All of mine were fired with my ArmaLite M15 A4. It has a 20" CL HBAR. My 55 gr. cannelured bullets averaged just about 3,000 with 25.0 gr. of Varget. 60 gr. Hornady SP averaged 3,150 fps with 26.1 gr. of Varget. 65 gr. SGK averaged 2,950 fps with 25.6 gr. of Varget. I was using the same rock, about 200 yards away for the aimpoint for all rounds fired, and all hit it. It's good to see that the same zero works for 3 different loads. No, the rock wasn't very big! Using a chrony is interesting, but not really all that big a thrill to me. It is a good excuse to get out and make noise. |
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Did you notice how well the 748 worked on the top end.(best extreme spread) Ball powders like the top end. It would be interesting to see comparable data using standard primers. Although I did notice you are using Wolf and there is still a lot of debate over what exactly a Wolf SRM primer actually is. |
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Not a loader but tha PMC looks pretty weak. I thought the same thing. I may be wrong, but I believe they advertise it to be ~3200 fps. Obviously you won't get this in a 14.5" barrel, but I thought it'd be relatively close in the Weatherby. PMC Bronze is decent ammo but notoriously weak. The PMC X-tac is closer to milsurp velocities. |
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Don't really know what comments you're fishing for, so it's hard to know what to say.
I find it unusual and bothersome that the ES for the bolt gun is greater than that for the gas gun. While your highest intensity load is getting close to precision level ES, there is still room for improvement. Single digit ES is the goal. Federal is not very consistent brass. Using various primers prevents consistency. If you charged with a powder measure, you got O.K. results. Seems like this powder isn't working particularly well with this bullet. (or, your charging practices are inconsistent) Don't know how far off the lands these loads are in the respective rifles. |
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Did you notice how well the 748 worked on the top end.(best extreme spread) Ball powders like the top end. It would be interesting to see comparable data using standard primers. Although I did notice you are using Wolf and there is still a lot of debate over what exactly a Wolf SRM primer actually is. I did notice that. That was interesting to me. I have some Winchester SR primers laying around that I will test in the AR to see what variances I get compared to the Wolf SRM. |
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Don't really know what comments you're fishing for, so it's hard to know what to say. I find it unusual and bothersome that the ES for the bolt gun is greater than that for the gas gun. While your highest intensity load is getting close to precision level ES, there is still room for improvement. Single digit ES is the goal. Federal is not very consistent brass. Using various primers prevents consistency. If you charged with a powder measure, you got O.K. results. Seems like this powder isn't working particularly well with this bullet. (or, your charging practices are inconsistent) Don't know how far off the lands these loads are in the respective rifles. Not looking for anything in particular, just any observations from seasoned reloaders out there. These we're my first loads I worked up for the bolt action, so I wasn't expecting anything spectacular. But I wasn't at all impressed either. Like you said, the Federal brass is not consistent at all. But it's okay for plinking. I don't have the Hornady tool to check the distance from the lands, but I would like to get it in the future. Thanks for your input. Any info is helpful. |
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Not looking for anything in particular, just any observations from seasoned reloaders out there. <snip> I don't have the Hornady tool to check the distance from the lands, but I would like to get it in the future. Thanks for your input. Any info is helpful. My thoughts - You did not provide the most important information of all - the accuracy data. We don't shoot to have good chronograph data. It's all about the targets. You want to keep and analyze the targets. Shoot each load onto its own target so you can discern how each load performs on target - both point of impact (as opposed to point of aim) and group size. Another topic - I've found it is really difficult to get instruments to provide information that is less than about 1% accurate (25-30 fps). Trying to get down into the 0.5% to 0.25% range gets to be very, very difficult. The point is, don't sweat it if your chronograph data is within 1% of your expectations. What distance did you shoot at? My final thought is a recommendation - get the Hornady Head and Shoulders gage. This gage is more important than the Chamber-All gage you refer to. This gage will help you avoid reloading problems caused by improper resizing before they happen. |
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Not looking for anything in particular, just any observations from seasoned reloaders out there. <snip> I don't have the Hornady tool to check the distance from the lands, but I would like to get it in the future. Thanks for your input. Any info is helpful. My thoughts - You did not provide the most important information of all - the accuracy data. We don't shoot to have good chronograph data. It's all about the targets. You want to keep and analyze the targets. Shoot each load onto its own target so you can discern how each load performs on target - both point of impact (as opposed to point of aim) and group size. Another topic - I've found it is really difficult to get instruments to provide information that is less than about 1% accurate (25-30 fps). Trying to get down into the 0.5% to 0.25% range gets to be very, very difficult. The point is, don't sweat it if your chronograph data is within 1% of your expectations. What distance did you shoot at? My final thought is a recommendation - get the Hornady Head and Shoulders gage. This gage is more important than the Chamber-All gage you refer to. This gage will help you avoid reloading problems caused by improper resizing before they happen. I do exactly what you say - shoot every load on a different target. And I keep every single one of them. I meant to post the targets, but for whatever reason, I didn't.
I'll post the 2 most accurate targets when I get home for lunch. I have the Hornady headspace gauge & love it, just dont have the Bullet Comparator attachments...yet. |
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I recently bought a Chrony F-1, and ran my most common .223 loads over it today. It's interesting, how test data differs from RCBS load data, and good to know. All of mine were fired with my ArmaLite M15 A4. It has a 20" CL HBAR. My 55 gr. cannelured bullets averaged just about 3,000 with 25.0 gr. of Varget. 60 gr. Hornady SP averaged 3,150 fps with 26.1 gr. of Varget. 65 gr. SGK averaged 2,950 fps with 25.6 gr. of Varget. I was using the same rock, about 200 yards away for the aimpoint for all rounds fired, and all hit it. It's good to see that the same zero works for 3 different loads. No, the rock wasn't very big! Using a chrony is interesting, but not really all that big a thrill to me. It is a good excuse to get out and make noise. RCBS data? I have never seen any RCBS data, could you post some up for all to see? |
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Quoted:
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I recently bought a Chrony F-1, and ran my most common .223 loads over it today. It's interesting, how test data differs from RCBS load data, and good to know. All of mine were fired with my ArmaLite M15 A4. It has a 20" CL HBAR. My 55 gr. cannelured bullets averaged just about 3,000 with 25.0 gr. of Varget. 60 gr. Hornady SP averaged 3,150 fps with 26.1 gr. of Varget. 65 gr. SGK averaged 2,950 fps with 25.6 gr. of Varget. I was using the same rock, about 200 yards away for the aimpoint for all rounds fired, and all hit it. It's good to see that the same zero works for 3 different loads. No, the rock wasn't very big! Using a chrony is interesting, but not really all that big a thrill to me. It is a good excuse to get out and make noise. RCBS data? I have never seen any RCBS data, could you post some up for all to see? I'd also like to see some RCBS data if you have it available. I didn't know it existed. |
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Quoted:
Quoted:
Quoted:
I recently bought a Chrony F-1, and ran my most common .223 loads over it today. It's interesting, how test data differs from RCBS load data, and good to know. All of mine were fired with my ArmaLite M15 A4. It has a 20" CL HBAR. My 55 gr. cannelured bullets averaged just about 3,000 with 25.0 gr. of Varget. 60 gr. Hornady SP averaged 3,150 fps with 26.1 gr. of Varget. 65 gr. SGK averaged 2,950 fps with 25.6 gr. of Varget. I was using the same rock, about 200 yards away for the aimpoint for all rounds fired, and all hit it. It's good to see that the same zero works for 3 different loads. No, the rock wasn't very big! Using a chrony is interesting, but not really all that big a thrill to me. It is a good excuse to get out and make noise. RCBS data? I have never seen any RCBS data, could you post some up for all to see? I'd also like to see some RCBS data if you have it available. I didn't know it existed. Probably a typo, maybe some more people should dogpile it and derail the thread. |
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Quoted: Quoted: Quoted: I recently bought a Chrony F-1, and ran my most common .223 loads over it today. It's interesting, how test data differs from RCBS load data, and good to know. All of mine were fired with my ArmaLite M15 A4. It has a 20" CL HBAR. My 55 gr. cannelured bullets averaged just about 3,000 with 25.0 gr. of Varget. 60 gr. Hornady SP averaged 3,150 fps with 26.1 gr. of Varget. 65 gr. SGK averaged 2,950 fps with 25.6 gr. of Varget. I was using the same rock, about 200 yards away for the aimpoint for all rounds fired, and all hit it. It's good to see that the same zero works for 3 different loads. No, the rock wasn't very big! Using a chrony is interesting, but not really all that big a thrill to me. It is a good excuse to get out and make noise. RCBS data? I have never seen any RCBS data, could you post some up for all to see? I'd also like to see some RCBS data if you have it available. I didn't know it existed. Probably a typo, NO need to pile on. dryflash3 |
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