BeerBaron Posted March 30, 2016 Share Posted March 30, 2016 check out this vid. I can't remember if that's with 3N38 or N105 but it's either 10.2gn or 3N38 or about 10.5gn of N105. As you can see it's a pretty full case and as best I cna tell is a slightly compressed load. When the powder drops into the case it is quite 'fluffy' (for want of a better word). It can settle a bit and not really be 'compressed'. I would suggest if you go much past 9gn of 3N39 you consider lengthening OAL out to 1.240 to 1.250. Link to comment Share on other sites More sharing options...
BeerBaron Posted March 30, 2016 Share Posted March 30, 2016 looking at the vid it looks like N105. still about the same bulk (or more) than 3N38. Link to comment Share on other sites More sharing options...
earthshine402 Posted March 30, 2016 Share Posted March 30, 2016 check out this vid. I can't remember if that's with 3N38 or N105 but it's either 10.2gn or 3N38 or about 10.5gn of N105. As you can see it's a pretty full case and as best I cna tell is a slightly compressed load. When the powder drops into the case it is quite 'fluffy' (for want of a better word). It can settle a bit and not really be 'compressed'. I would suggest if you go much past 9gn of 3N39 you consider lengthening OAL out to 1.240 to 1.250. OK wow, looks quite a bit higher than what I am seeing with 8.8gr 3n38.. thanks for the vid. Perhaps its a good idea for me to ease into these charges. My plan is to load from 9.0 - 10.2gr 3n38. MG JHP 124 1.235". I will shoot each weight and closely inspect the brass before shooting the next level up. Link to comment Share on other sites More sharing options...
BeerBaron Posted March 31, 2016 Share Posted March 31, 2016 Yeah 8.8gn of 3n38 behind a 124 at 1.235 is a good start. Shoot and chrono those and see where you need to go from there. Link to comment Share on other sites More sharing options...
dvc4you Posted April 5, 2016 Share Posted April 5, 2016 (edited) Akai Shogun, 4 popple holes, new compensator style, uses a lot of gas very loud. OAL 1.235 WSR primers MG 124gr JHP 3N38 10.5gr. PF = 173 N105. 11.3gr. PF. = 173 I prefer 3N38 Edited April 5, 2016 by dvc4you Link to comment Share on other sites More sharing options...
earthshine402 Posted April 5, 2016 Share Posted April 5, 2016 Akai Shogun, 4 popple holes, new compensator style, uses a lot of gas very loud. OAL 1.235 WSR primers MG 124gr JHP 3N38 10.5gr. PF = 173 N105. 11.3gr. PF. = 173 I prefer 3N38 I loaded up some 3n38 with the same bullet and OAL, and encountered some interesting seating issues. Once I hit about 9.8 gr, my OAL got longer - 1.240, 1.245, 1.25. I initially set my OAL by making dummy loads. It seems that once the powder started to compress, the bullet may have been slipping back out a little after the seating, so I cranked down on the seater die until I got more in the neighborhood of 1.235. However, with this practice, some of them were pretty short - like 1.221. I push-through sized all my brass with Hornady one shot, and left the lube on there. Will re-tumbling the brass help with the increasing OAL, or should I consider a seat-and-crimp in one step instead? How do you guys achieve a consistent OAL with JHPs once the powder starts to compress? Link to comment Share on other sites More sharing options...
sauza45 Posted April 5, 2016 Share Posted April 5, 2016 Do you load on a 1050 if so take a close look at the swager, if you adjust it down to low to where it goes past the step you will have a hard time getting good oal. I load 10.8 gr of N105 at 1.235 oal and never have a problem. I did have trouble once, that is how I figured this out with the swager Link to comment Share on other sites More sharing options...
dvc4you Posted April 5, 2016 Share Posted April 5, 2016 I run a Dillon sizing die in station 1 and a EGW undersize die on station 2 (load on a 1050). Never had a problem with OAL changing. Link to comment Share on other sites More sharing options...
earthshine402 Posted April 5, 2016 Share Posted April 5, 2016 (edited) I load on a 650 with a bullet feeder.Current die setup: Lee sizing die, Mr. Bullet Feeder expander, bullet feeder, dillon seat, dillon crimp.I previously had Lee seat and Lee FCD, and was also seeing the OAL variation, got the Dillon seat/crimp to attempt to set it straight but behavior remained. Edited April 5, 2016 by earthshine402 Link to comment Share on other sites More sharing options...
dvc4you Posted April 5, 2016 Share Posted April 5, 2016 I use Mr. Bullet Feeder , you need more neck tension ... Link to comment Share on other sites More sharing options...
earthshine402 Posted April 5, 2016 Share Posted April 5, 2016 I use Mr. Bullet Feeder , you need more neck tension ... does this mean less bell? I thought I had a minimal bell.. I also just ordered the EGW undersize die.. Link to comment Share on other sites More sharing options...
dvc4you Posted April 5, 2016 Share Posted April 5, 2016 (edited) Bell just enough to don't drop the bullet while the shell plate rotates, crimp just to straighten the case. Neck tension is what holds the bullet after it is seated, last 1/3 of the case. You can see a slight shoulder were the bullet is seated. Edited April 5, 2016 by dvc4you Link to comment Share on other sites More sharing options...
earthshine402 Posted April 11, 2016 Share Posted April 11, 2016 Update on the OAL with 124JHPs and compressing 3n38: I belled as little as I could with the Mr. Bullet Feeder expander, and used the EGW undersize die, and still had the same thing happen - the OAL with actual powder in the round was longer than the setting with a dummy load. I have eliminated the possibility that there was not enough neck tension. I went back to the regular LEE sizing die as I like the way the regular sizer runs in my press after push-through sizing everything and keeping the lube on the cases.. just easier to operate the press.. and undersizing I don't think buys me anything.I think it has come down to this: the bullet is deforming upon the pressure in seating. I was originally using a LEE seating die with a round nose plug, and now I'm using a Dillon seating die also with a round nose plug. What kind of seating plug are you using for compressed loads with MG JHPs? Link to comment Share on other sites More sharing options...
BeerBaron Posted April 12, 2016 Share Posted April 12, 2016 You can send a bullet to lee and they'll custom make a seating stem for you that will seat on the shoulder/ogive of the bullet rather than pushing on the nose. Just be aware when measuring oal from tip to base there may be variance due to tolerance in the shape of the bullets. Seating this way is better as it ensures consistent case volume and that the ogive is in the same spot too. The tip doesn't matter so much. Link to comment Share on other sites More sharing options...
Reibtrain Posted April 16, 2016 Share Posted April 16, 2016 STI GrandMaster Tru-Bore 38 SC 125 RN TBB SRP 9.6gr 3N38 1.266" OAL 1,459 FPS 182 PF A short slo-mo of running this load. Shot the video to work on my Draw, but gives a good perspective of how flat it runs. I'd like to give 115gr a try, so any suggested loads appreciated. Eric Link to comment Share on other sites More sharing options...
Reibtrain Posted April 16, 2016 Share Posted April 16, 2016 Sorry, have to find a better way to include the video. Link to comment Share on other sites More sharing options...
straightravage Posted May 2, 2016 Share Posted May 2, 2016 Reibtrain, I just got a STI DVC open in .38 SC. I loaded my first rounds... 124 MG JHP, 9.6 gr 3N38, 1.235 OAL. Can I ask why you run 1.266 OAL? Adding more room accomplishes what? and do you think 1.235 will run good in my setup? Thanks for the help! Link to comment Share on other sites More sharing options...
Reibtrain Posted May 2, 2016 Share Posted May 2, 2016 Reibtrain, I just got a STI DVC open in .38 SC. I loaded my first rounds... 124 MG JHP, 9.6 gr 3N38, 1.235 OAL. Can I ask why you run 1.266 OAL? Adding more room accomplishes what? and do you think 1.235 will run good in my setup? Thanks for the help! Congrats on the DVC! I have the DVC Limited in .40 and love it. 1.266" feeds well in my GM and I don't get nose diving in my mags. That's with a 125gr RN from The Blue Bullets. I need to tweak it when I use a different bullet profile. It provides some case capacity, but I load that OAL for feeding only. Hope that helps, Eric Link to comment Share on other sites More sharing options...
straightravage Posted May 7, 2016 Share Posted May 7, 2016 Just got done at the range. I made rounds with 9.6, 9.7, 9.8, 9.9, and 10.0. I could only tell the difference with the 10.0gr. Those felt like gun was punching my hand!! All the other loads were smooth. I couldn't sense the gun was mad. With that being said should I keep my original loadout? 9.6gr @ 1.235oal? Thanks. Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
Reibtrain Posted May 9, 2016 Share Posted May 9, 2016 Just got done at the range. I made rounds with 9.6, 9.7, 9.8, 9.9, and 10.0. I could only tell the difference with the 10.0gr. Those felt like gun was punching my hand!! All the other loads were smooth. I couldn't sense the gun was mad. With that being said should I keep my original loadout? 9.6gr @ 1.235oal? Thanks. Sent from my iPhone using Tapatalk I would try stretching out the OAL and see what you think. Link to comment Share on other sites More sharing options...
straightravage Posted May 9, 2016 Share Posted May 9, 2016 What length would you suggest?? If I bump up to 10.0 grains or 10.2.... Would increasing the OAL smooth out the kick? What about 1.250 with either 10.0-10.2? Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
straightravage Posted May 9, 2016 Share Posted May 9, 2016 I guess I'm asking if increasing the OAL will be smoother, I don't really understand what increasing or decreasing OAL actually provides. Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
earthshine402 Posted May 9, 2016 Share Posted May 9, 2016 I guess I'm asking if increasing the OAL will be smoother, I don't really understand what increasing or decreasing OAL actually provides. Sent from my iPhone using Tapatalk shorter OALs are accompanied by higher pressure Link to comment Share on other sites More sharing options...
straightravage Posted May 9, 2016 Share Posted May 9, 2016 So if I go up to a max of 10.2gr, keep 1.235 or increase it to 1.250? Will going to 1.250 work the comp better? I have no Popple holes btw. Link to comment Share on other sites More sharing options...
straightravage Posted May 9, 2016 Share Posted May 9, 2016 The best thing about reloading is you can adjust over and over. Just pressed out 40 rounds of 10.2gr @ 1.252. And 9.6gr @1.252. Going to hit the range and see how they do. Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
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