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25 TCU load dta [message #37967] Sat, 28 March 2015 20:38 Go to next message
roy-boyguns is currently offline  roy-boyguns
Messages: 16
Registered: December 2014
Location: Illinois
Forum Newbie
Does anyone out there have any reliable loading data for the 25 TCU.
I want to try 75gr.-120gr. bullets. Going to combo varmit/deer guns
for Grandson. Have 15" pistol and 23" rifle barrels. Any help will
be appreciated.
Thanks,
roy-boyguns
Re: 25 TCU load dta [message #37982 is a reply to message #37967] Mon, 30 March 2015 09:20 Go to previous messageGo to next message
Crubear is currently offline  Crubear
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Registered: March 2010
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Call Sierra. If they can't help you no one can

Honestly, I have all the barrels I want or could ever need..... wait, look, there's another!!
Re: 25 TCU load dta [message #37983 is a reply to message #37982] Mon, 30 March 2015 10:38 Go to previous messageGo to next message
gemihur is currently offline  gemihur
Messages: 309
Registered: March 2012
Location: Ridgelines of Virginia
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How 'bout .25 Ugalde? http://www.reloadersnest.com/query_all_handgun.asp?CaliberID =36
or Steves pages ... http://stevespages.com/257_25.html
good luck,
Jimmy


Think twice...shoot once.
Re: 25 TCU load dta [message #37991 is a reply to message #37983] Mon, 30 March 2015 16:56 Go to previous messageGo to next message
gemihur is currently offline  gemihur
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Registered: March 2012
Location: Ridgelines of Virginia
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.25 Ugalde = 25 TCU = .257 TCU

Think twice...shoot once.
Re: 25 TCU load dta [message #37996 is a reply to message #37967] Mon, 30 March 2015 18:33 Go to previous messageGo to next message
roy-boyguns is currently offline  roy-boyguns
Messages: 16
Registered: December 2014
Location: Illinois
Forum Newbie
Thank you, this gives me a good starting point.
LeRoy
Re: 25 TCU load dta [message #45159 is a reply to message #37996] Thu, 02 May 2019 18:03 Go to previous message
unkl chuck is currently offline  unkl chuck
Messages: 4
Registered: November 2012
Location: south of the Piney Woods
Forum Newbie
Just came back to the forum after a long vacation.
I'm a 257 TCU fan and shooter. Searching for reliable load data is a formidable task. I haven't found any that I would trust or recommend. However, we are talking wildcats and with that comes d.i.y. load development. I'll give my methodology and you can take it for what you want.
Starting out, I had a new 257 TCU barrel and no dies. CH lists them on their die chart and indicated that they would be running some in the near future. I put my name on the list and waited. While waiting, Midway ran Lee 25-45 Sharps dies on an attractive sale. Bought a set. That set me up to expand the necks to .257 and seat bullets. MY fireforming loads were 75g Vmax over a charge of 4895 [I used the starting charge from the Hornaday X manual for the 6.5 TCU reduced a couple of tenths] seated to just touching the lands. Success and no signs of excess pressure. From that point, I used my L.E.Wilson bushing neck die for 7MM TCU with an appropriate bushing to neck size the brass and seated with a 6.5 TCU seating die. The CH dies finally arrived and they work fine.
I've tested loads with H-322, N-133, and CFE 223 with reasonable results. I suspect if I put more work into it, that H-322 might be the winner. Also, I start with new Starline brass, dry lube the necks on the first expanding, and general OCD case prep. The 6.5 is close in bullet diameter and weight and case capacity as well, the starting 6.5 load data can serve as a start point. 4895 has been recommended for 'reduced loads' [these fireforming loads aren't exactly reduced] and I find it to be a good 'all round' powder.
Good luck. Be careful and thoughtful in load development and keep notes on everything. Smile
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