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Post by nexttime on Jan 19, 2017 15:48:08 GMT -5
Thanks sharing . Your time and effort is greatly appreciated.
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Post by m4madness on Jan 19, 2017 17:17:40 GMT -5
So, is it safe to assume that a LRMP will always generate more pressure than a 209? I'm getting ready to send my CVA Apex .45-70 off for conversion, and I'm concerned about over-pressurizing it. I will be using IMR 4198 powder and probably a saboted 200-grain SST. I've read that 60 grains is safe, but I'm wondering if I should back it down, especially if using LRMP. I don't want this to be me with a barrel shard protruding through my backside:
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Post by Deleted on Jan 19, 2017 17:30:33 GMT -5
Off topic but I just wanna say hey to all the fence jumpers reading this
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Post by Richard on Jan 19, 2017 17:50:14 GMT -5
"Hey" Rambler!
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Post by Deleted on Jan 19, 2017 17:56:18 GMT -5
"Hey" Rambler! I admit to it. I ain't skeered. My name is Steve and I'm a fence jumper....proud of it too.
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Post by Deleted on Jan 19, 2017 18:09:51 GMT -5
So, is it safe to assume that a LRMP will always generate more pressure than a 209? I'm getting ready to send my CVA Apex .45-70 off for conversion, and I'm concerned about over-pressurizing it. I will be using IMR 4198 powder and probably a saboted 200-grain SST. I've read that 60 grains is safe, but I'm wondering if I should back it down, especially if using LRMP. I don't want this to be me with a barrel shard protruding through my backside: Just don't load 120 grains of 4198 and you'll be fine. Honestly if you haven't completed decided I'd use lrmp and not look back. Couple reasons I'm not is one I have 1800 209 primers, I'm set up for 209 more so than lrmp and I already have one 209 gun I don't like mix and matching. However with that said I'm only 38 and I will probably build another one before I'm finished. Working on #3 right now.
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Post by Deleted on Jan 19, 2017 18:26:25 GMT -5
Jerry..............This will be an added feature on Hank's. Thanks for doing that. Also, and I know there is a lot involved with this project but...........Had you thought of a system to keep track of the traces much like on Doug's? Either in numerical order as you do them or is there a way (I don't do spread sheets) that one could "put in a powder/bullet" search and retrieve info for a specific. I know this can get complicated...........but maybe we have a member who is good at this sort of thing that could help you? Just thinking out loud. Maybe Hank could set up a "sticky" just for the traces? typical171 did the trace links on Dougs with an online tool called 'Box'. Maybe he'll see this and hook these up.
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Post by Hank on Jan 19, 2017 18:29:32 GMT -5
So, is it safe to assume that a LRMP will always generate more pressure than a 209? I'm getting ready to send my CVA Apex .45-70 off for conversion, and I'm concerned about over-pressurizing it. I will be using IMR 4198 powder and probably a saboted 200-grain SST. I've read that 60 grains is safe, but I'm wondering if I should back it down, especially if using LRMP. I don't want this to be me with a barrel shard protruding through my backside: We have shot hundreds of loads with IMR 4198 at 65 grains and not had a problem. Double that and you will have a problem.
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Post by Deleted on Jan 19, 2017 18:46:04 GMT -5
I am letting the results speak for themselves. The traces that were done were with loosely sized bullets that required only 2 fingers with my heavy CVA lifetime range rod AND without wads. I plan to revisit these loads with tighter loading bullets and also with wads for a more complete comparison. As far as LRMP generating more pressure, we will let the traces decide. Stay tuned... I plan to put together a hyperlinked file in the near future like was done before.
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Post by Hank on Jan 19, 2017 19:29:47 GMT -5
Guys.
I have created three boards for Scat to post his pressure trace data. I will create more boards as testing continues. Scat has done a good job so far and invested a lot of his time and money into this so that we can have a better understanding of what pressures we are creating. I think this will be a good advancement for smokeless muzzleloading. Please support Scat and enjoy his hard work. Check out the new boards. You can make request for Scat to test but be aware,, he will be overwhelmed with request so be patient while he works toward testing your load request.
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Post by dennis on Jan 19, 2017 19:41:48 GMT -5
So, is it safe to assume that a LRMP will always generate more pressure than a 209? I'm getting ready to send my CVA Apex .45-70 off for conversion, and I'm concerned about over-pressurizing it. I will be using IMR 4198 powder and probably a saboted 200-grain SST. I've read that 60 grains is safe, but I'm wondering if I should back it down, especially if using LRMP. I don't want this to be me with a barrel shard protruding through my backside: This was a muzzle loader barrel not a 45-70 barrel, different breechplug set-up and different barrel.
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Post by Hank on Jan 19, 2017 19:55:43 GMT -5
I would like to know exactly what kind of powder and how much they used to blow that rifle up like they did. It had to be a large charge of very fast burning pistol powder to do that..... I will be doing some testing in the near future and I will be trying to blow up a few barrels, but I will be using the powders common in out sport,,,,
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Post by Deleted on Jan 19, 2017 19:57:31 GMT -5
Someone needs to give 'em a call.....
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Post by Hank on Jan 19, 2017 20:04:38 GMT -5
Someone needs to give 'em a call..... You are just the man for the job........ call em and see if they even know what they used.
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Post by Deleted on Jan 19, 2017 20:11:29 GMT -5
Someone needs to give 'em a call..... You are just the man for the job........ call em and see if they even know what they used. It's on my Outlook calendar to do list first thing tomorrow AM.
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Post by Deleted on Jan 19, 2017 20:18:18 GMT -5
In another video by CVA they used 20 grains of HS-6 to induce a muzzle breech on a CVA
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Post by m4madness on Jan 19, 2017 20:40:23 GMT -5
I would like to know exactly what kind of powder and how much they used to blow that rifle up like they did. It had to be a large charge of very fast burning pistol powder to do that..... I will be doing some testing in the near future and I will be trying to blow up a few barrels, but I will be using the powders common in out sport,,,, Here's the full video, though I don't think it mentions how much powder was used in this particular explosion:
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Post by m4madness on Jan 19, 2017 20:43:16 GMT -5
Yeah, I was just referring to the fact that I didn't want to end up like that while using the proper barrel.
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Post by jimmykip on Jan 19, 2017 21:17:26 GMT -5
In another video by CVA they used 20 grains of HS-6 to induce a muzzle breech on a CVA 120 grains he said I believe.
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Post by Deleted on Jan 19, 2017 21:23:15 GMT -5
it blew up for sure. It was 120 grains. That powder is a little hotter than blue dot.
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