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Post by txrapscallion on Apr 27, 2016 18:19:40 GMT -7
Hi Dan......
Just recently got on line with the group......how refreshing to find others who like large bore bullets, fired from old cartridges, with large flanged cases, from lever guns. Also, I got a Winny 94 30-30, rechambered and rebored to 38-55 by JES, when I found I couldn't really get a decent 35-88 lever gun at a reasonable price. Money well spent with him, the job was flawless and works like a charm, at half the price of one of the 94 Win Comm's! So I guess I will stick around and listen and chime in on what little I know something about! Thanks for the forum! I do have a question or perhaps reassurance!
I recently bought some of your "heavy for caliber" 375 Win bullets, for my Win 94XTR. I want to turn my Win 94 375 from a safe queen, into a TX Hog killer! I have had some problem finding the AA2230 specified in your powder recommendation for this size and weight. A EM to the Ramshot folks tell me that I can use A2015 extruded that burns faster, or substitute A2460 a spherical slower burning powder, but is specific to the large straight walled cartridges. My question is will the slower burning powder, the A2460, create more pressure in the chamber prior to a launch of the projecticle, that might do damage to the rifle or me! I usually use Hodgdon or IMR powders and am not really familiar that well with AAC.
I am also assuming that I should possibly start my loads at 25.5 gr rather than the 28.5 gr, and work up into the larger size. Also should the Mag pistol primer suggested in your load data, remain a part of the equation?
Thanks for your time and assistance!
Bill Martin
Live Oak Texas
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Post by Bullshop on Apr 27, 2016 20:51:37 GMT -7
OK I will take a stab at your questions.
"" My question is will the slower burning powder, the A2460, create more pressure in the chamber prior to a launch of the projecticle""
I my experience in most cases substituting a slower powder but staying at the same weight charge will produce lower pressure than an equal charge of the faster powder all else being equal. The equal charge of slower powder will also give a lower velocity due to the lower pressure. It will usually take an increased charge of the slower powder to equal the velocity/pressure of the faster powder
The AA# 2015 is an extruded powder with a burn rate close to the 4198 powders from Hodgdons and IMR and should be ideally suited to developing a good load with this 350gn bullets in the 375 Win case. However being somewhat faster in burn rate than the AA 2230 will need to have the charge weight reduced substantially. I would have to make some calculations but am thinking about 15gn to start and chronograph. Work up the load and look for velocity uniformity as you near the original 1550 fps velocity. With these powders and the straight wall case there is really no danger of pressure excursions unless perhaps you go so low that you lodge a bullet in the barrel. I would estimate that you will end up somewhere near 21 of 2015 after load development. IMR 3031 should also prove to be a very good choice for load development with this heavy bullet in the 375 Win case.
The mag primer will not be needed with the extruded powders but staying with the LP primer adds a very readable pressure indicator for the load development. The reason is that LP primers have cup material that is compatible with lower energy firing pin strike than are LR primers and are also designed for mag hand gun pressures of in the area of 40,000 psi. Conventional lever guns are also in this same pressure area. Using LR primers designed for 60,000 psi will not show pressure signs at 40,000 psi but the LP primers will.
Alliant Reloader #7 is another powder that works well in this type loading but powder charges should be adjusted accordingly as to powder burn rate.
If time and our Lord permit perhaps I will get an opportunity to develop a few more loads using these common powders.
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Post by txrapscallion on Apr 27, 2016 21:20:35 GMT -7
Thanks Dan.....Eggzaxtactaly what I needed. I will keep you posted on the results!
Bill Martin
Live Oak TX
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Post by missionary on Apr 28, 2016 3:01:17 GMT -7
Greetings tx..
Welcome to this fine place to rest awhile. I am another caliber 38 shooter. The 375 is one fine cartridge for anything you might decide to align in the sights.
Mike in Peru
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Post by Bullshop on Apr 28, 2016 8:15:54 GMT -7
An amusing little story about my Dad and his Ruger #3 375 Win. He was hunting antelope with a friend in SW Montana on the Back Country Byway between Grant and Dell. They both had tags for either sex antelope. They came upon a small heard and Dad lined up on one but didn't notice a second one behind the one he aimed at. He fired one shot and filled both tags, hunt over.
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Post by missionary on Apr 28, 2016 17:49:35 GMT -7
Now that would be an interesting and pleasant situation. I can see a caliber 38 bullet doing that.
I used a 255 grain FNPB cast of range scrap with 25% WW chugging along at 1275 fps from a Dan Wesson Supermag 8 inch to duplicate the old BP loading as ILLinois does not trust us with rifles. Was up a big red oak when a young buck stepped out broadside of some thick stuff about 20 yards away. Put the sights on his chest and squezzed. At the shot he just stood there. I thought I missed. I was so shocked I decided if I could miss that shot that young buck should live. Watched him walk away slowly into a hedge row up a trail I knew. Crawled down and decided to dig up my bullet. Right there was a tuft of hide and tan fur where a deep hole was bored into the dirt. Never did dig deep enough to get the bullet.
Close by found the beginnings of a red trail. At the end of the "trail" was bedded down the young buck sound asleep.
That bullet would have easily gone through two of those bucks.
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Post by txrapscallion on May 1, 2016 18:50:00 GMT -7
When your buddy shoots and gets an extra one, I guess you find out how strong the friendship is!
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Post by Bullshop on May 1, 2016 21:02:41 GMT -7
True That!!!
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Post by txrapscallion on May 16, 2016 20:13:31 GMT -7
375 Win with 350 gr LFP gc bullets testing......
Well Dan I finally got the cartridges tested with the new 350 gr bullets. Used AAC2015 powder because no 2230 was found locally. I shot through a Chrony set out at 6', out of two rifles....A H&R rebarreled 38-55 1-12 twist and a a stock Win 94 375 Big Bore. The longer barreled H&R gave me usually about 50 FPS over the Win 94 with the 20" barrel. I made up 2 cartridges for each powder increment, one for each rifle.....just to keep the test as true as possible. I started at 15 grains as you suggested and progressed upwards from there to reach the 1550 FPS MV goal that the 2230 would have gotten me. I loaded a progression of 2 gr per increment and gained roughly 100 FPS per increment. Your estimate of 21 grains fell short at about 1250 FPS, so I continued to 27 gr and got on the threshold 1450 to 1500. 28 Grains of 2015 will give me 1550 to 1600 FPS MV, without any primer or case damage, the recoil is about like a black powder shove not a snap your neck one. I used your suggested Mag LP primers, because I had a fair amount and I had them opened, and they worked like a charm. I did notice that the 28 grains of 2015 did just about fill the case to the bottom of the bullet, but never really measure it.
Two other powders were tried from a suggested cast bullet book.....IMR 4227 from 15 gtains to 21 gr to get to the desired 1500 FSP MV with great results. Also tried Unique but gave up on it, because it appeared to large a grain that filled the case with low doses of 17 -19 grains, also hard to dial in an accurate measure with my tools. I have read several suggestions including yours to try IMR 3031, which is also suggested for 255 gr Barnes bullets in the 375 Win load.
All in all this was kind of a fun thing to try out, I usually go with book loads or someones pet load reduced to start!
Thanks for all your help, I do believe I have my 100-150 yd swine killer out of the closet.
My next project will be to get my Win 94 .356 Win out of the safe, if I can get some 300 gr LFP cg bullets from you with your suggestions for a load!
Bill Martin
Live Oak Texas
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