PHR87 wrote:Thanks for the welcome!
Hoot, yes I first noticed the creep when I was testing the first round to ensure that it chambered well. Then went back and reseated it and crimped more aggressively. Still crept forward. I was wondering if seating it out a bit further would put the crimp closer to the driving band edge? Or would that be counter productive with less bullet friction inside the case?
These were wet tumbled/ultrasonic so I don’t know about any residue, but will keep that in mind for the future.
I haven’t been able to fire it yet, so I’m not sure if the recoil will bump the rounds in the mag as well. I will be able to go to the range tomorrow, but will likely fire single shot for Consistency.
Once I get a load worked out, I would eventually like to see how much the creeping actually affects things. Probably with 2x 5 round groups with Single shot/riding the bolt forward and tapping it all the way closed vs slamming it and allowing semi-auto loading of subsequent rounds. If there’s a significant effect, then I’ll go down the road of a side/stab crimp.
Thanks for the thoughts and I’ll try to keep things updated here. I’m looking forward to being a part of the group!
,
I was reading what wrote but my mind was for some reason on the Hornady 245gr Interlock bullet that has been gaining popularity here, so I missed the fact that you are actually using the TSX 275.
don't grow old whatever you do! By all means, seat the bullet so that you can catch one of the two driving band
grooves. You want the majority of the groove you choose to be mostly buried beneath the mouth with just a little peeking out and then drive the taper crimp down into it. You should not have to crimp any narrower than .474 for a good hold on that bullet. The sharp edges of those
grooves provide an excellent gripping point.
Hoot