Is there any considerations needed to be taken when loading Barnes TTSX and LRX without any load data with a specific powder? I have data for standard jacketed bullets but there isnt any for the Barnes bullets using the powder I have. I am reloading for my 270win and was going to try both 129gr LRX and 130gr TTSX with RL 23. Was planning on using 140gr bullet data as a starting point since both those bullets are about the same length as the 140gr I currently use and wanted to make sure I was on the right track.
Reloading Barnes Without Data
- Thread starter snuzzo29
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I ran both bullets in QL to give you a baseline. As always, start low and work up.
I have used the data cross referenced from a couple of load manuals, for the same weight of bullet, as a starting point for decades. Even if the bullet isn't exactly the same shape or composition it will be close, and since you are working up anyhow, you will never have an issue. Starting with the load data for a slightly heavier bullet just means you usually start a little lower..
Zen Archery
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For Future Reference -
www.barnesbullets.com
Load Data - Barnes Bullets
Find reloading guidelines and data for your Barnes Bullets products.
www.barnesbullets.com
Very nice of you to provide the link but I am pretty sure the OP already knew about it. His issue is there is no RL23 data from Barnes for the bullets he wants to use. There is nothing on the Barnes site that I saw that provides that info for the 270 Win, his Barnes bullet and RL23.For Future Reference -
Load Data - Barnes Bullets
Find reloading guidelines and data for your Barnes Bullets products.
Stammster
Well-Known Member
Just Jon - just curious...when you ran these simulations what did you use for start pressure?
Yeah I looked through the Barnes data first. What I didnt know was if I could used the data for a bullet of same weight but different construction compared to the Barnes.
QL does not provide a start load or pressure. I just ran up charge weight as close as possible to max pressure. I generally back off 3 grains and work up.
Stammster
Well-Known Member
That's not what I asked. I asked what you used for shot start pressure. It's one of the input parameters and varies for cup and core vs copper monos.
Most manuals have data for equivalent weight Hornady GMX bullets. I've used that with good success. Solids generate pressure ALOT faster than jacketed bullets. I've also used the same data in my creedmoor for the 127g LRX as the 143G ELDX. So your idea of using 140 data should also be a good start.
He is asking about initial pressure. QL recommends 6500 psi for barnes. Cup and core bullets are about half that.
