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Old 03-07-2013, 01:04 PM   #1
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Default FFFG .50 cal. inline charge

Can you folks give me some charge weight guidelines for Triple 7 fffg behind a saboted 290 grain bullet? Rifle is a .50 cal. magnum charge capable Knight Revolution inline, with a 28 inch barrel. I have been using three 50 grain equivalent pellets. My formerly good groups with pellets have become erratic and unpredictable. I have been told that pellets may not store well and this could be the problem.

Also I weigh all my charges for my centerfire, and intend to do the same with the FFFG powder. What would a 150 grain "equvilent" weigh?

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Old 03-07-2013, 01:17 PM   #2
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It's not done by weight, it is volume. Buy a powder measure and start at 60 grains and work your way up. When your accuracy drops off your load is too high. The gun will let you know what it likes best for a load.

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Old 03-07-2013, 03:47 PM   #3
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Ditto, though I think 60 is a little low to start with if working up a hunting load in a 50. But if you are working a range load, as good as any place to start. FFF is usually used in smaller guns then a 50 and you may find that you will get more fouling then if you used FF or a substitute in RS (rifle, shotgun) and 100 gr of FFF will shoot different then 100 gr of FF will.

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Old 03-08-2013, 05:51 PM   #4
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Thanks for the responses gentlemen. I didn't really have enough knowledge at the time of purchase but Gander Mountain didn't have T-7 FFG so I went ahead and purchsed FFFG. I see on the Hogdon site that FFFG is normally used in up to .50 calibre so I will try it. Others have also told me not to weigh muzzle loader charges so I will use volume. Bottom line however....if I end up at 150 gr. equiv. FFFG is it going to be safe. The Hogdon tables only go up to 100 gr. of anything. I always used three 50 gr. equiv. pellets up to now. Have a lot of spoiled pellets that I am going to pitch. Are measures expensive and can one get a set of various volumes? My first year using pellets was fairly successful but went down hill as the pellets aged. Going to be hard to get used to volume measuring as I have only loaded for my 6mm Rem. in the past and precise doesn't doesn't adequately describe the care I take with that ammo. My 6mm Blitz-kings go into half minute if I do my aiming job well.

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Old 03-08-2013, 06:20 PM   #5
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150 grains should be safe but its a waste of powder and likely it won't all burn.

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Old 07-19-2014, 04:11 PM   #6
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Can anyone guide in the right direction on where to purchase a new breech plug for my Knight revolution

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Old 07-19-2014, 04:30 PM   #7
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Quote:
Originally Posted by Rmeeks View Post
Can anyone guide in the right direction on where to purchase a new breech plug for my Knight revolution
http://www.midwayusa.com/product/481522/knight-revolution-hex-head-breech-plug-stainless-steel


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Old 07-19-2014, 06:22 PM   #8
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In a inline use 3 50gr. pellets = 150gr behind a 290 grain bullet.....................

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Old 07-20-2014, 01:04 AM   #9
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Your best accuracy will likely be with a load somewhere between 70 and 110 gr by volume. Don't let the fact that just because the gun will handle 150 gr that it will shoot best with that load. Also 70 gr of 777 is more than enough to take any animal in north America.

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Old 07-20-2014, 02:43 AM   #10
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How many shots per group do you guys use when working up loads, and how often do clean the barrel during a session?

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