Garmil Posted October 15, 2015 Share Posted October 15, 2015 Setting up a tanfoglio limited for 3 gun open minor. Going to get it ported. Anyone played around with .380 100 +/- grain bullets and slow powder to make lots of gas at a low power factor for this? Link to comment Share on other sites More sharing options...
Round_Gun_Shooter Posted October 15, 2015 Share Posted October 15, 2015 I realize it is not what you are asking but MagNaPort will be of no advantage in minor. Didn't do much on my 357SIG carry gun. YMMV Link to comment Share on other sites More sharing options...
MrPostman Posted October 15, 2015 Share Posted October 15, 2015 Setting up a tanfoglio limited for 3 gun open minor. Going to get it ported. Anyone played around with .380 100 +/- grain bullets and slow powder to make lots of gas at a low power factor for this? I have loaded these for steel. Using longshot and 100 grain Xtremes. They were not as accurate out of my gun as 115s. Not enough spinrate to stabilize them possibly. Link to comment Share on other sites More sharing options...
lee blackman Posted October 15, 2015 Share Posted October 15, 2015 Try accurate #7, auto comp, or maybe HS-6.... Last time I ran 90gr XTP's, I was using vv N320, then AA#2 when I ran out of N320. It wasn't ported, but gosh was it fast. Link to comment Share on other sites More sharing options...
Garmil Posted October 15, 2015 Author Share Posted October 15, 2015 Setting up a tanfoglio limited for 3 gun open minor. Going to get it ported. Anyone played around with .380 100 +/- grain bullets and slow powder to make lots of gas at a low power factor for this? I have loaded these for steel. Using longshot and 100 grain Xtremes. They were not as accurate out of my gun as 115s. Not enough spinrate to stabilize them possibly. Used with porting only? Or a comp? Link to comment Share on other sites More sharing options...
MrPostman Posted October 15, 2015 Share Posted October 15, 2015 (edited) Actually this was out of my Limited 9mm so no comp or ports to affect bullet flight. Edited October 15, 2015 by MrPostman Link to comment Share on other sites More sharing options...
Garmil Posted October 15, 2015 Author Share Posted October 15, 2015 Oh okay I looked at xtreme but they only have the standard plating wouldn't trust it above 1250fps or so. Link to comment Share on other sites More sharing options...
MrPostman Posted October 15, 2015 Share Posted October 15, 2015 (edited) Actually I still use the 124 Xtremes FP in my open gun and have run them over 1500 fps with no problems. I have shot over 10000 of these and they are very good and accurate. I just switched to precision deltas to try for next years season. We will see....here is a chart that shows the instability I was referring too. Edited October 15, 2015 by MrPostman Link to comment Share on other sites More sharing options...
Garmil Posted October 15, 2015 Author Share Posted October 15, 2015 Interesting maybe the heavy plated arent necessary. That calculator looks neat I'll have to find and play with it. Link to comment Share on other sites More sharing options...
MrPostman Posted October 15, 2015 Share Posted October 15, 2015 Here is the link to the calculator. http://www.bergerbullets.com/twist-rate-calculator/ Link to comment Share on other sites More sharing options...
Garmil Posted October 15, 2015 Author Share Posted October 15, 2015 Check your bullet length, you used the whole round oal not the bullet. This is what I get with a rough guess on bullet length after a search. Link to comment Share on other sites More sharing options...
MrPostman Posted October 15, 2015 Share Posted October 15, 2015 Ah! Well thanks for the correction Link to comment Share on other sites More sharing options...
MrPostman Posted October 15, 2015 Share Posted October 15, 2015 Actual bullet length is .433. I still have 1k of these. Link to comment Share on other sites More sharing options...
Garmil Posted October 15, 2015 Author Share Posted October 15, 2015 Thanks Link to comment Share on other sites More sharing options...
kneelingatlas Posted October 16, 2015 Share Posted October 16, 2015 I've used 100gr bullets over 10gr SP2 in 9mm. Awesome! Link to comment Share on other sites More sharing options...
Open1215 Posted October 16, 2015 Share Posted October 16, 2015 (edited) How do you get 10g in a case?? I'm FULL at 9.4 Unless sp2 is not as bulky Edited October 16, 2015 by Open1215 Link to comment Share on other sites More sharing options...
Garmil Posted October 16, 2015 Author Share Posted October 16, 2015 Wow that's a lot of powder! Did you try that with a ported only gun Atlas? Link to comment Share on other sites More sharing options...
kneelingatlas Posted October 16, 2015 Share Posted October 16, 2015 SP2 is like dust! I shot that load from a V12 Gold Team, it was insanely loud and dead flat. Link to comment Share on other sites More sharing options...
kneelingatlas Posted October 16, 2015 Share Posted October 16, 2015 I've played with a quad ported CZ and honestly I would not recommend it. For Open minor you're better off slapping a dot on a Limited. Link to comment Share on other sites More sharing options...
Open1215 Posted October 16, 2015 Share Posted October 16, 2015 Hmm nice. 3n38 is very fine to me but ya. If 10g didn't fill a case that would be cool too Link to comment Share on other sites More sharing options...
Garmil Posted October 16, 2015 Author Share Posted October 16, 2015 I've played with a quad ported CZ and honestly I would not recommend it. For Open minor you're better off slapping a dot on a Limited. I've already got that! Your old rts2. I know it won't feel like a real como shooting major. But that top end will just be for open minor so any improvement is worth it. Link to comment Share on other sites More sharing options...
BeerBaron Posted October 16, 2015 Share Posted October 16, 2015 How do you get 10g in a case?? I'm FULL at 9.4 Unless sp2 is not as bulky Different powders have didferebt densities. Like I can only fit around 10.5 3n38 in my super at 1.250 with a 124 rn but it'll take 11gn+ of n105 with all else equal. Link to comment Share on other sites More sharing options...
Open1215 Posted October 16, 2015 Share Posted October 16, 2015 How do you get 10g in a case?? I'm FULL at 9.4 Unless sp2 is not as bulky Different powders have didferebt densities. Like I can only fit around 10.5 3n38 in my super at 1.250 with a 124 rn but it'll take 11gn+ of n105 with all else equal.It's funny you would say that. They are my loads exactly. I load 10.5 3n38 or 11g N105. I know the N105 is a stick powder more or less but to me 3n38 is a very fine powder to begin with. Almost like salt crystals. I guess bulk density would have to be different but I guess my thinking was with the EXACT same load data/burn rate I didn't think the density could vary all that much? Link to comment Share on other sites More sharing options...
BeerBaron Posted October 16, 2015 Share Posted October 16, 2015 Yeah it's a bit of a dark art. I agree you'd think being such a fine powder 3n38 would be the most dense and it's certainly up there. There's so much that goes into powders that could affect density though even of powders at a very similar burn rate. Lee from memory has a chart showing how much powder (in weight) fits into 1 cubic centimeter. Doesn't list all powders of course but it may be of interest. Link to comment Share on other sites More sharing options...
Open1215 Posted October 16, 2015 Share Posted October 16, 2015 Hmm that would be a neat chart. I know they offer a "dipper" for powder. It would reason they would offer a "safe dipper" load of some sort. At any rate sorry to go off corse OP. I don't have a magnaporting but I liked the glock "C" model I had. Didn't do too much but I w also wasn't loading at the time and it was in .40 s&w. They report a good deal in muzzle rise. Even more so with the quad port they offer. I remember seeing a M&p that had quad port. They had a comp but never bothered using it they where so happy with the porting. Link to comment Share on other sites More sharing options...
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