Texas Sheepdawg wrote:gunnut wrote:Bump it up to 45grns. of LiL Gun!
I've been shooting "Zero" 230grn over 45grns of LG for over a year now. No ill effects. Mainly for recoil R&D.
This was just a starting load with a taper crimp. I thought about the Legendre Crimp but figured I better consult the gurus first. My next session of these same loads will be over a Chronograph, 5 rounds may have the Side crimp. The othe 5 will be just like the ones shot in these videos and the last five for grouping. My next batch of MagTechs will be around 40-41grains if all goes well. But we are headed back into the 100+ degrees days again so it may be a while yet.
Given the Magtechs don't have a cannelure to catch, if you try a stab crimp, you're going to have to drive it hard enough to create a groove in the bullet wall through the case wall, AKA
wasp crimp. Somehow, I suspect it will not have a positive impact upon accuracy. It has however, been done before, just not by me.
When I get off work, I have 5 sets of two, reduced velocity loads to simulate distance.
This time, I was absolutely fastidious making them with QL compensated to reflect how my powder and rifle behave and each pair are as identical as humanly possible, right down the tenth of a grain on the grits buffering filler. I will toss one of each load across the Chrony and save the other one for re-shooting the water shots. That way, I know precisely the velocity that yields the result, not just a predicted velocity. The range is missing it's superstructure in between weekends and we've generally discouraged folks from using it in between weekends, so I may have it to myself. If that is the case, I have 3 sets of water jugs squirreled away in the back of the truck to test with. I sincerely believe now that the first tests were done with the rounds loaded way lower in velocity than I thought they would turn out to be. Now, we'll have some more precise data to munch on. Results to follow in a separate thread.
Hoot
But knowing my bullet speed and powder loads is a clue to pressures and I am sure WC is gonna pipe back in here and help me out of this because I'm still a greenhorn.
yet. All I can say is never leave your sleepwalking, sugared up 15 year old alone at 03:00HRS with your Chrony, Chips and dip, and a refrigerator. You guys that have shot your Chronys.........At least you know WHY. 
