Vibrating charges.

[omgb]

I'm not an expert but here is my method. I have a 28" drop tube epoxied (JB Weld) to an aluminum funnel. I use a Belding and Mull measure. I hold the case under the drop tube and pour in the powder. Once the cases are filled, I run through a compression die. This is about as fast as any method I have tried, and it results in very consistent charges. The B&M measure is accurate enough to use with fast pistol powders. With BP, it is very accurate, +/- a grain for sure.

[desert deuce]

I have several B&M Powder Measures.
Curious to know how you manipulate the device to maintain + or - a grain of say 1.5 or 2F Swiss? Or is it one tenth of a grain you meant?

Because, + or - a grain could mean, if you set the tube for 50 grains, your spread would be 49 to 51 grains of powder by weight.

[ian45662]

As luck would have it our weekend work has been cut out for now. I have time to load ammo. I did order and receive a Harrells thrower and have been playing with it. I am pretty happy with it so far. I have the Extreme Spread down to about .3-.4 grains which is good I think. I am just going to use the drop tube for now but will experiment with vibrating charges in the off season maybe. We have a shoot coming up at Friendship in early September and I will try shooting thrown charges at that match. I don’t think I will notice a difference of + or- .15-.2 grains. Even with the use of the drop tube ammo loading has gotten a little quicker so I am excited to see how it goes.

[John Bly]

Ian, last year I had thrown away some brass I had been shooting since 1996 because some had started getting cracked necks. I had some new brass to fireform and decided just to shoot it at a match in October. I generally fill a volume measure then dump it on my scale to tweak it, then drop tube it into the cases. To speed things up I did not weigh the powder, just volume measured and drop tubed it. After all I was just shooting to fireform cases and have a day out shooting with the guys so I did not expect great results. I shot as well as ever with those loads. If you want to speed things up perhaps just using the powder measure and skip weighing might do the trick.

[ian45662]

Ian, last year I had thrown away some brass I had been shooting since 1996 because some had started getting cracked necks. I had some new brass to fireform and decided just to shoot it at a match in October. I generally fill a volume measure then dump it on my scale to tweak it, then drop tube it into the cases. To speed things up I did not weigh the powder, just volume measured and drop tubed it. After all I was just shooting to fireform cases and have a day out shooting with the guys so I did not expect great results. I shot as well as ever with those loads. If you want to speed things up perhaps just using the powder measure and skip weighing might do the trick.

That is where I’m going with it. Use the Harrells to throw charges and not weigh and trickle to the exact amount. I just made up 50 rounds. I’ll make 100 more and be ready for friendship.

[opencountry]

I'm assuming 'most' of you match shooters shoot 45-70s or 90s using gg bullets. My way of making all of my loads for match shooting, and plinking is simple. BTW, I shoot (2) 45-110's, and a 45-90. I weigh my charges on the cheapest RCBS powder weigh scale you can buy, a 750 Rangemaster, and drop-tube the charges through a 30" 3/8" copper tube. Prehistoric I know, but it works for me. I add a .030" vegi-fiber wad, and compress the load a designated amount, then add one .060" poly wad, squeeze the annealed case mouth a little (1/8"), and seat the patched bullet. Swiss Fg has proved itself to me.

Robert

[opencountry]

Oh, I forgot to mention a wool felt wad (3/16”) between the poly wad and the bullet base. Sorry ‘bout this.
Robert

[ian45662]

I have 70s a 90 and a 38-50 that I use in matches. At one time paper patch was all I shot but I doubt that I will ever shoot a paper patch bullet out of a cartridge rifle ever again. I probably will start using them in my long range muzzleloader sometime though.