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| <AKI> |
Hi Dave. I have no experience of the TCUs but I made a wildcat, something like 30-222 Rem max Improved, and did some maths around these case volumes and calibers. Using the formulae in Geoffrey Kolbes A Ballistic Handbook the N135 seems to be a bit slow for the job. Please note that I used a "usable case wolume" of 25.5 grains of water (223 Rem case). It should be close but nothing to base a max load on. N135 might work in the 6 though N133 should be closer. In the 6.5mm N130 should be close to filling the case, but N133 and even N120 should work. I would personally start at 18gr N133 in both calibers though I don�t recommend it for anyone else. Max loads are rifle specific and should be approached slowly and with great caution. Take care! AKI | ||
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| one of us |
UCLADave I�m not sure exactly how the 6 TCU look like, if Im�not all wrong it�s a 6mm/.223?? I�ve made a 6/.223 for a good friend and we use N-133 in that rifle with 70 gr bullets. I would say that N-135 is a bit slow in that case. We have tried loads up to about 28 gr. with N-133, but up there the pressure signs was quite obvious. We satteled for about 26 gr of N-133 for roe deers and black grouse. I fireformed cases with 18 gr of N-130 and 70 gr. bullets. Hey AKI! Have you tried the 9,3 Oryx bullets yet I got two really nice sixpointers and a spiker in Bamb�le Sep 1 It will probably take a loooong time before I shoot three roe bucks in one day again Stefan | |||
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| <Mats> |
quote: Yup, that's right. The TCU's are .223's necked up with no other changes made. The 6, 6.5 and 7 TCU are quite common in handgun silhouette over here. According to the folks I've talked to and the loads used by them, most use Norma 200 or N 133 in the 6 and 6.5. I've shot both of those with N 133 and the cases were just about full even with 125 gr Partitions in the 6.5, so N 135 is probably not a good choice. -- Mats | ||
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| one of us |
quote: Uh nope - actualy the TCUs are 'improved' so taper, shoulder angle and neck length are all changed..... [This message has been edited by 1894 (edited 10-05-2001).] | |||
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| <Mats> |
quote: Thanks buddy... When I read your piece, I though: Huh? I had to go check a 7 TCU case I had lying around, and sure as a cow milks, it was wider at the shoulder. But the shoulder seems to be in the same place..? What are the specs, anyone know? Anybody have a crow, BTW? -- Mats | ||
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| one of us |
quote: A crow??? Why??? Of course I have a crow(and some jackdaw, seagull, marten, fox and the tail of a beaver) in my freezer for my dog to practice with PerN [This message has been edited by PerN (edited 10-06-2001).] | |||
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| <Mats> |
quote: 'Cause they taste better than Corvus Corone... -- Mats | ||
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| <UCLADave> |
Mats, 40 degree shoulder VS 23 degree. Thant's the difference. Dave | ||
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| <AKI> |
Mats&Per! The grey and black swedish crows are Corvus corone cornix (sometimes erroneously called C. cornix), whereas english crows are totaly black and of the subspecies Corvus corone corone. Don�t know about the taste. Stefan. I have only tested a few loads. Got my dies only last week as well as a cold... Congrats for you successful visit on the islands! AKI | ||
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one of us |
Dave: I don't have data for N135, but there is data for the 6.5 TCU in the current Sierra Handgun reloading manual. It is an intriguing cartridge, and I once had a 10-inch Contender barrel for it. | |||
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| one of us |
AKI You got me  you are totally right  I was so stunned over Mats request that I checked if crow really mean the bird at a lexicon and they come up with the Corvus cornix and I just copied it Thanks again Aki | |||
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| <AKI> |
Whell Per, you newer know what a Homo sapiens umeaoensis might come up with, do you. Especially those of the subsubspecies of H.s.u.sex�enhalvfilissimus  AKI | ||
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