I've seen the threads on an adjustable MEC bar. I always used bushings and was more concerned with grains of powder. I just got a new electronic scale and my 1 1/8th shot bar is only 1.05 oz. of shot. Weighed each shell in my last 25 ..and had to add approx. 30 -7 1/2's to reach 1 1/8th ( 1.125) Oz. Kind of concerns me with PSI/FPS/etc. Weighed my 1 1/4 bar and it was 1.19 oz. ..probably off by another 30-35 pellets. Anyone ever REEM out a MEC bar to be EXACT? MEC bushing are usually conservative......but I never thought about SHOT.
A True 1 1/8 oz of shot
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I have used my Dremel tool to customize many of my Hornady and P/W bushings. (Powder and shot). When I have the bushings "fine tuned", I mark them as to what charges are thrown. Good Luck.. Ed
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The bushing only controls volume. The actual weight is dependent on the shot size as well as the antimony content. Magnum shot is lighter than chilled shot per volume.
size 8 shot will be heavier than 7 1/2 if the volume is constant.
Which is why I like adjustable charge bars on my Dillon instead of bushings
size 8 shot will be heavier than 7 1/2 if the volume is constant.
Which is why I like adjustable charge bars on my Dillon instead of bushings
Well, to SEE. ..(and I can't ever be certain)......I took my last 25 shells off my press (took about an hour to laod 1 box on a 650 Grabber) and added 25-30 shot on my scale to weigh EXACTLY 1.125 OZ./per shell. I plan on shooting a "light" box followed by a "true" box this SUNDAY. Wish I had a independent company to do this though ! Actually, I shoot pretty consistent after my first box...within 1-2 birds.
I must admit.......I load 8's and 7 1/2's. I had 20lbs. of reclaimed shot left and ADDED perhaps 2 lbs to each of my NEW bags of each (need to get rid of it now that shot is coming down). Guess I'll see what happens Sunday, and weigh some true 8's and 7 1/2's. It does make SENSE that BY volume in a bushing......1 1/8 oz of "say" #9's would weigh more than 1 1/8 of # 6's (lots moe air in the 6's).AND it makes SENSE that MEC would be CONSERVATIVE.
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MEC makes the bars for chilled shot...GOOD LUCK
I've always had good sucess with my loads. I am just wondering how 1 1/16 oz. differs from 1 1/8th oz. ,probably not much........MAYBE 1/2 way between 1oz. loads and 1 1/8 oz. loads. SO, just "decifer" the "halve way" PSI and FPS of the load you want?
dkusner, I actually know of gents that are anal enough to specifically throw 1 1/16th oz.
Yes Iam anal enough that I have adjustable many a bar in my day to throw exactly what I intended/wanted to throw. Does it make a difference? Anything you mentally believe does and thus I do. In actualality, yes it does in pressure thus speed. Less inertia to push against upon ignition.
Yes Iam anal enough that I have adjustable many a bar in my day to throw exactly what I intended/wanted to throw. Does it make a difference? Anything you mentally believe does and thus I do. In actualality, yes it does in pressure thus speed. Less inertia to push against upon ignition.
Well......I think I'll just go out and clean the pebbles out of my tire treads ! Of couse YOU know I'm gonna break 25 straight with my TRUE 1 1/8 oz. shells come Sunday......at least that'll be my STORY.I've just added 30 more pieces of lead to the already 350 or so. That's almost ...almost 10% more. Come SUNDAY....that's gonna look like shooting a bull in a barrel......or whatever. Am I going to reem my bar? ....probably NOT......am I going to add 30 pellets to each load....Definetly NOT. Am I going to think about an adjustable bar?.......MAYBE.
G
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·Some of you go to a lot of trouble grinding on charge bars to get a specific drop. I just add tape to larger bars to accomplish the same thing. I can fine tune my charge bars without any permanent changes. That's all in the past now.
I've changes to 366's and their bushing are much more accurate than what Mec has to offer.
ec90t
I've changes to 366's and their bushing are much more accurate than what Mec has to offer.
ec90t
I use a rat-tail file and finger nail polish to modify my shot and powder bushings.
As far a volume and shot size, we could get into an interesting (to a few of us) mathematical discussion of the packing theory. If we put an equal weight of #2 shot and #12 shot in a universally large container (one with no sides), they will take up the same volume. It is the edge effect that results in a bushing dropping slightly heaver loads of #8 shot compared to #7.5 shot.
Pat Ireland
As far a volume and shot size, we could get into an interesting (to a few of us) mathematical discussion of the packing theory. If we put an equal weight of #2 shot and #12 shot in a universally large container (one with no sides), they will take up the same volume. It is the edge effect that results in a bushing dropping slightly heaver loads of #8 shot compared to #7.5 shot.
Pat Ireland
And after you do what hmb suggests you can fine tune them with 3M black electrical tape adhered to the inside wall of the cavity, if you made the hole too large. A Hornady rep taught me that trick years ago. If you use the good tape it will never come unstuck unless you work at removing it.
Yes, I checked my new scale (From Gamaliel's MTM mini digital for $30, pretty nice scalle for the money) against my Lyman's balance scale. Within .01 of a grain.Plus it came with a "test" weight that was right on. Perhaps I'll take my 1 1/4 oz charge bar and try the "tape" method EC90T talks about. It is weighing out 1.19 oz. of 7 1/2's. What kind of tape? MAN's favorite DUCT tape?
Looking at Titegroup recipies.....if I load 18.5 grains, in my supposed 1 1/8 oz recipe, I end up with a 11,500 PSI / 1255FPS shell. Same load with 1oz of shot is 10,100PSI / 1290FPS. So, I would GUESS that with my 1 1/16 oz, at least my pressure is not higher (between 10,100 and 11,500) but my speed is more than 1255 ( somewhere between 1255 and 1290.Thus, if SPEED kills (patterns).....I have the TRUE answer to my PAST misses. And to think that I have lost sleep over believing it was the INDIAN and NOT the ARROW !
Lastley, WHAT are all the RECIPIES designed for ? 1 1/8th oz. BY VOLUME or WEIGHT ? I always assumed that it is WEIGHT.
Looking at Titegroup recipies.....if I load 18.5 grains, in my supposed 1 1/8 oz recipe, I end up with a 11,500 PSI / 1255FPS shell. Same load with 1oz of shot is 10,100PSI / 1290FPS. So, I would GUESS that with my 1 1/16 oz, at least my pressure is not higher (between 10,100 and 11,500) but my speed is more than 1255 ( somewhere between 1255 and 1290.Thus, if SPEED kills (patterns).....I have the TRUE answer to my PAST misses. And to think that I have lost sleep over believing it was the INDIAN and NOT the ARROW !
Lastley, WHAT are all the RECIPIES designed for ? 1 1/8th oz. BY VOLUME or WEIGHT ? I always assumed that it is WEIGHT.
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