Topic:

...7TCU LOADS...

Discussion: 
from hgoodman@cypress.cadgis.lsu.edu 

A friend of mine gave me a fairly complete rcbs setup two years ago >when he moved out of state. I promised him (and myself) that I would learn to handload -- someday -- looks like now it is time to get serious. EAB sold me a set of dies for the 7tcu and tells me all I have to do is get 223 brass and convert it to size. At this point I am at a loss. Can anyone suggest resources for supplies, instructions and formulas for this round keeping in mind it is for a contender and silhouette matches. 


from jerry 

Start with brand new brass. It's tempting to use ball ammo brass, don't! 


from norm johnson 

I am curious why this advise? 

I bought the 7TCU when it was first introduced and have used military brass exclusively with not the slightest problem in all those years. My theory was that since most military brass is neck annealed that it would form easily - which it certainly did. The lots of brass that I used (LC67 and LC69) had been fired 3 or 4 times as .223. I am still using that 2 lots. 

Then about 10 years ago a friend wanted me to form brass from Federal brass for his then new 7TCU. This also worked without incident. 

My conclusion is to use what you have or whatever is least expensive. I continue to see military offered now and then in Shotgun News for as little as $10/1000. 

Incidentally, the loading data published in the gun rags at the introduction of this cartridge was considerably hotter than what is now seen in the loading manuals. I used, and continue to use that early data with no adverse indications. Same is true of the ..357 Herrett. 

God Bless! 

Norm 


From: alfaro@tidcompo.llnl.gov (Jerry Alfaro) 

Hi Norm, 

**I've cc'd military brass and found most with inconsistent volumetric capacities. When cutting primer pockets I have found most military brass varies in depth and diameter. I just find using new brass eliminates variables which will produce consistent loads. After all, consistent loads make better accuracy. 

>>that I would learn to handload -- someday -- looks like now it is time to >>get serious<< ** As the "newbie" stated, he has never, or done little reloading. 

** For someone learning reloading by themselves (I hope not) it can be frustrating trying to figure out why his de-caping pins keep breaking every time he tries to re-size or form a piece of crimped military brass. Or why the brass won't chamber in his barrel because the brass is too long. You as an experienced reloader know to do those things, beginners don't. I guess I should have stated that persons first starting out should use non-military brass to eliminate learning curve frustrations. 

** Believe me, I don't disapprove the use of military brass. I use military brass for reloading my 223 barrel just because I shoot so much of it and couldn't afford to shoot factory brass. I have factory .223 Winchester brass that I use for those shots way out there that I want the best accuracy I can get. I made some 6.5 TCU brass recently from some early Remington military brass and they shot very good. Again, an experienced reloader knows from experience what needs to be done with military brass, beginners don't. 

I hope you understand my choice of brass for beginners? 

Have a good one Norm... jerry- :-)

   
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