Help Needed on 44 300gr LBT LFN Loads


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Billy Jack
April 5, 2013, 10:32 AM
I was accidently sent 300 gr bullets instead of the 280 gr I ordered. Should have weighed the bullet before I started working up a new load for a Super Blackhawk, but I didn't.
For my workup to a new load (which I planned to be an accuracy and milder shooting load) I prepared the following:
5 rounds each of 2400 @ 17.5gr, 18gr, 18.5gr, 19gr, & 19.5gr
5 rounds each of Unique @ 8gr, 8.5gr, 9gr, 9.5gr, & 10gr
I thought somewhere in that range would be a good load for the 280 gr bullet.
BUT they are now 300gr bullets.
My thought is that I am too far up the range, at least on the top couple of loads to be the milder loads I want. I realize the Ruger will likely take it OK, but I was not trying to get max type loads.
I can wait until they send me the correct order and start over or maybe just switch my thinking to a new load in 300 gr and work with the loads I have worked up that are in the lower range.
If anyone has experience with 2400 and or Unique with 300 gr bullets and has an opinion on what I should do now I would really appreciate it.

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DC Plumber
April 5, 2013, 08:11 PM
I'd keep the 300s. Your load depends on the seating depth. Look in a Speer #14 manual, page 954. With a 300g Hornady JHP XTP, there are two crimp grooves. If your revolver allows you to use the one that makes a longer OAL, 17.1 of 2400 is the starting load and 19.0 is the max. That's with a jacketed bullet. You can substitute lead in jacketed loads, but not vice versa.

I once had 300g Long Nosed,Flat Nosed lead bullets that had one crimp groove that made the bullet right at the end of my 29. 17.5g gave me 1100 fps.

Check the numbers yourself first, but I wouldn't throw the baby out with the bath water yet.

Billy Jack
April 6, 2013, 12:38 AM
I went ahead and shot the ones I prepared last night. Although none of them would have been too hot for the Blackhawk they were a little hotter than what I was looking for in this gun and the shooting I would be doing....hogs, deer, etc....no moose or bear in West Texas.
I really liked 9 gr of Unique with this bullet. It felt plenty strong for hogs and grouped really nice.
So I guess I am going to pull a bunch of bullets and reload them all with 9gr of Unique and 300gr LFN bullets.

DC Plumber
April 6, 2013, 08:50 AM
I'm sure you could sell those unused 300g lead bullets really fast on the classified section, just based on today's bullet shortage. But if you can make them work for target practice that would be a plus.

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