The powder measures on the 550B, 650, and 1050 are all of the same design. Set the funnel to go just a touch deeper into the case so that it will most certainly activate the measure properly.
I've run thousands of rounds of VERY clean and new brass on a 550B and a 1050 with no such problems.
I've run a sackful of brass clean enough to see your self in, and never had any problems. Maybe your resizing die is a little on the large end of tolerance, resizing die isn't adjusted properly and not fully resizing the brass, powder die isn't adjusted to flare the case slightly, or you've gotten ahold of a lot of thin brass so that the ID is a little large after resizing. Or maybe the OD of the powder die is on the small side.
Not being critical, but I've loaded a lot of very clean brass with no problems. Something else is probably a contributing factor.
John
Posts: 89 | Location: North Carolina | Registered: 15 July 2003
Something isn't adding up here. Are you sure you have a powder die INSERT in the powder die? Each caliber has its own powder die insert to: 1)In the case of straight wall pistol brass, fit inside the case to allow the powder to fall inside and to slightly bell the mouth of the case to facilitate the insertion of the bullet. 2)In the case of most rifle brass that has a shoulder, to slide over the mouth of the brass and rest on the shoulder.
In either case, when the brass engages the die insert all the way and the press is stroked fully, you can see the cam on the powder measure stroke back allowing the powder to fall into the case. I have loaded thousands of .38 special and .357mag usually with mixed brass and never once had the problem you are describing. If you have the correct insert in the powder die, then you must not have the die screwed down far enough to engage the brass. You will know when you have gone to far because the brass will get flared out way to much.
Posts: 399 | Location: Louisiana | Registered: 19 February 2004