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Posted: 10/22/2023 8:32:46 PM EDT
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HI Just curious if anyone is using this in lieu of Quick Load? The gentleman that wrote Gordon's passed away back in Jan 2022. The Gordon's site has been updated since his passing.. it appears that a group has picked up the ball that Gordon started. I just don't have the $$$ to buy Quick Loads. Thanks for your time and your inputs. |
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I use it. There are a number of variables that can affect your results quickly. Case volume (how accurate is your measurement?) Seating depth Proper bullet length spec. Barrel length Its a cool tool to see how these variables affect the output. I dont have a chrono so I have no idea if the results are accurate but I do compare other peoples load data and chrono data to see if the results are in line with it. |
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Just did some comparison between it and QuickLoad with one of my loads. I trust the QuickLoad results more, but I do like Gordon's is free and continuously updated. It wasn't enough of a difference to really say one or the other. Can definitely be used to test different combinations and of course work up from there. |
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I used GRT when I was developing an all new load for my match rifle. I found it easy to use and easy to understand the results. There was no data anywhere for the powder cartridge combo I was interested in but all the components were readily available in GRT - cases, bullets, powder. GRT showed me what was a safe powder charge. That load worked exactly as described by GRT. So did the slightly higher charge I tried next. GRT predicted no pressure problems with either and none were found - easy bolt lift, primers looked fine. IIRC, they were within just a few fps (2-5 fps?) of the predict. I'd say get GRT and use it. |
| It's worth having and decent. It does a pretty good job on common ammo and common loads. It can be more spotty once you deviate past that. It's not very good with 6.5 Grendel. But if you want to run 5.56 loads with 55 FMJ with H335, it's pretty good. The price is right. |
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Quoted: It's worth having and decent. It does a pretty good job on common ammo and common loads. It can be more spotty once you deviate past that. I used it to develop a unique load. It is the 6XC cartridge using DTAC 115 bullets and 43.0 gr of Ramshot MAGNUM powder. All these oddball components are already in the database. It predicted, to within a very few feet per second, the actual muzzle velocity. It also showed me, more importantly, I was safe on the internal peak pressure. Thanks to that tool, I got the answer on my very first outing. I had looked for for 20 years for a way to get above 2500 fps without sticky bolt lift. I was able to get up to 2900 fps with safe pressures, no sticky bolt lift, no pressure signs on the primers, so I'll get long brass life. Thank you, Gordon. RIP. |
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Quoted: I was wondering the same thing. Quoted: Quoted: Did you all download GRT directly onto your computers? Asking because I saw instructions not to do that. I was wondering the same thing. Do you have links to those comments? I'm also wondering how you would install it on your computer if you didn't download it. |
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Quoted: Do you have links to those comments? I'm also wondering how you would install it on your computer if you didn't download it. Quoted: Quoted: Quoted: Did you all download GRT directly onto your computers? Asking because I saw instructions not to do that. I was wondering the same thing. Do you have links to those comments? I'm also wondering how you would install it on your computer if you didn't download it. Yea I don't understand this topic. They developer sadly died, and his wife made it open avaliable somehow. Is someone running a host server that is running the calculations? Who/why? And the calculations have to be run there vs on your own PC to be correct? And they made a download able and installable version for your PC, that is erroneous? |
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Quoted: Do you have links to those comments? I'm also wondering how you would install it on your computer if you didn't download it. Quoted: Quoted: Quoted: Did you all download GRT directly onto your computers? Asking because I saw instructions not to do that. I was wondering the same thing. Do you have links to those comments? I'm also wondering how you would install it on your computer if you didn't download it. This is what I'm confused about "Download the GRT archive EXTRACT the downloaded archive into your user folder, onto a usb stick or something else you want and where you allowed to run applications from (on windows NOT on the desktop!) read the manual/documentation and installation instructions, located in the folder /doku/pdf/ done, start GRT" |
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Quoted: This is what I'm confused about "Download the GRT archive EXTRACT the downloaded archive into your user folder, onto a usb stick or something else you want and where you allowed to run applications from (on windows NOT on the desktop!) read the manual/documentation and installation instructions, located in the folder /doku/pdf/ done, start GRT" Im not sure exactly why they state that but I can guess. They recommend your "user" folder and not the "desktop". Well the desktop IS a folder as well withing the OS but all files all visible on the desktop so you wouldnt want all the individual appl files all over the desktop. You could possible delete one by accident. They are specifically mentioning extracting the files from a compressed zip or similar. Very common with downloaded apps. So I assume they recommend you use the "user" folder to keep all the application files in a contained place. I cant remember if GRT actually installs or if it just runs of the executable and related app files. Permissions would/should be the same for the users folder AND the desktop folder so I see no permissions issue. You could just create a new folder on the desktop or on the root. They could have explained it better. |
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