Quote:
Originally Posted by edgarspencer
The solution to the problem was given in Frank Srebro's recent post about shot bridging in his 9000 press. The nose of the ram tube is rolled in, to prevent the wad from being pulled back up. Rolling the end of the tube means the inside is also rolled in, (picture a choke) and the shot will bridge at that point. Reaming the inside of the tube eliminates the 'choke' and after that, it makes no difference how high up the tube is when you drop the shot.
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Should we
really be comparing Allen's issue of shot bridging with his
.410 MEC 600Jr. dropping #7 1/2 shot vs. Frank's
28ga. MEC 9000 dropping #8 shot?
I've been reloading both .410 and 28ga. shells for over four decades on P-W 375 machines, both ram/drop tubes are as they came from the factory, straight and without the noses being rolled over. I can tell you that shot bridging is a whole lot more common occurrence with the .410 than with the 28 -- especially with the larger shot size...maybe your experience differs from mine.