bishop Posted August 27, 2019 Report Share Posted August 27, 2019 (edited) I did find a few listed but lost them !Anyone have some tried and tested 1 1/4 loads using 777.Picked some up today with some rws caps .Testing gun tomorrow.1 1/8 oz loads welcome too.Aware of 15% reduction over standard BP but i can work all that out as it aint rocket science.Sorely tempted to take the gun out for the start of the season---but we shall see,. Edited August 27, 2019 by bishop Quote Link to comment Share on other sites More sharing options...
bruno22rf Posted August 27, 2019 Report Share Posted August 27, 2019 OK - as far as I know (but I am more than happy to be corrected) your 777 is used in the same VOLUME as BP but not the same weight. This means that, if you find a good starting load for BP and use a powder measure that measures by volume, you can mirror image the BP load with your 777. Go for a square load and work your way up - pour 1oz of shot into a spent cartridge that has been cut down so it just holds the 1oz load - bit of trial and error with a stanley knife but will not take too long (beside BP guns are very forgiving) - you can then use said cut down cartridge to measure your 777. Once you have got used to having a dirty face and everybody looking at you thinking that you are suffering from wind you can start increasing your load/powder to where you want it, but different wad combinations can alter pattern density just as much as too much/little powder. If you load your powder into plastic phials (recommended) then sit somewhere quiet and concentrate. Quote Link to comment Share on other sites More sharing options...
bishop Posted August 27, 2019 Author Report Share Posted August 27, 2019 (edited) Im reading also that yes you can use it volume for volume --i.e using any powder flask with a cut off volume button etc.But this will give you higher velocity etc.reducing it by 15% is supposed to drop the velocity back to its black powder volume equivelant--in other words im not as concerned as i was a few hours back. cheers Chris. ill cut a case down tomorrow morning 3 drams or 82 grains equal volume 1 1/4 oz black powder load seems popular.ill use the brass charge cup ,measure out 3 drams into a cut case ,mark it and cut it..15% reduction approx can be done visually if its too pokey for me or if it seems to be blowing the pattern.(70 grain) 21/2 drams roughly Edited August 27, 2019 by bishop Quote Link to comment Share on other sites More sharing options...
bruno22rf Posted August 28, 2019 Report Share Posted August 28, 2019 80 grains seems to stir a memory in my tiny mind so I guess that's what I used to use BP wise - 1 1/4 sounds about right too. I would still suggest that you start with a 1oz load and work your way up cos if you make a mistake it's going to be safer if you are not firing a heavy load. As a ROUGH guide - the plastic phials were about 3/4 full with the correct load in - till you have gained experience I would highly recommend that you use them thus keeping the main powder away from the gun when loading - they are anti static as well. Quote Link to comment Share on other sites More sharing options...
Feltwad Posted August 28, 2019 Report Share Posted August 28, 2019 (edited) Volume loads for black powder in a 12 bore percussion is has follows 2.1/2 drms to 1 oz of shot 2.3/4 drms to 1.1/8 oz of shot 3 drms to 1.1/4 oz shot It will best to start with the low load with your powder. If you use the largest load may be too much it would be more suited to a 10 or 11 bore also if your gun is a original have it checked out by a smith for safety ,loading can make a difference I find the best is powder two 1/8 cards shot finish with card , if you use a felt wad always make sure that you have a card wad on both sides because if not the shot will be imbedded in the felt wad which will blow your pattern or leave your muzzle like a bullet. Keep off plastic wads they are not suited for muzzle loaders Good shooting Feltwad Edited August 28, 2019 by Feltwad Quote Link to comment Share on other sites More sharing options...
bishop Posted August 28, 2019 Author Report Share Posted August 28, 2019 (edited) a lot of folks advise roughly 68 grains of the 777 for a 11/8 load stating its a very mild load for old guns.safe and not too pokey. what i see on my dads old powder/shot hand measure for black powder/shot for a 11/8 load. is 2 3/4 drams of black i .e 75 grains. Knocking 15% off to get like for like velocity /pressure wise means using 64 grains of 777 --similar to this "mild" load they talk about for older guns..Amusing thing is that all this fuffing is to create a black powder cloned load when as you say chris you can use 777 volume for volume if you like.It just means you are going to get a faster load with more pressure and a modern made gun should be able to handle it . Its a perdersoli 12 bore btw. A 70 grain load of 777 (11/4 oz load) equates to the widely used 3 dram (82grain) black powder load when i reduce the 3 drams by the advised 15% . if im trying to replicate the black powders ballistics.If i use more 777 powder i increase pressure/velocity and possibly start to blow the pattern.handy that as its a 21/2 dram measurement--easy to do so it seems 64-68 for a 11/8 load 777 and 70-75 for a 11/4 oz is about right allowing for this 15% reduction.If i creep up a few grains it should be fine so long as i never exceed the advised black powder volume for volume maximum loads. Edited August 28, 2019 by bishop Quote Link to comment Share on other sites More sharing options...
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