The Accurate Reloading Forums THE ACCURATE RELOADING.COM FORUMS Rifles Big Bores 375 Load Help, PleaseGo | New | Find | Notify | Tools | Reply | |
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I need some help in developing a load for my .375 H&H. The bullets of choice are Barnes 300 grain TSX and Banded solid. The same POI with either bullet, with at least 2600 fps is the perfect tickey. Can anyone please help with your load data? Obviously, I am new to reloading Holland's .375. Your help is appreciated!  "You only gotta do one thing well to make it in this world" - J Joplin | ||
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2700 fps? "There always seems to be a big market for making the clear, complex." | |||
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I use 67 gr. of IMR 4064 with the 300 TSX (WW brass/CCI 250 primers), and get superb accuracy in two .375s. I don't get too anxious about milking the last possible bit of velocity out of it; as long as it goes exactly where I want it to, 2500 fps is plenty. | |||
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I use 67.5 grains of IMR4064 with the Barnes 300 grain TSX. It's all I ever need. Frank "I don't know what there is about buffalo that frightens me so.....He looks like he hates you personally. He looks like you owe him money." - Robert Ruark, Horn of the Hunter, 1953 NRA Life, SAF Life, CRPA Life, DRSS lite | |||
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I'm getting in the 2690's (fps)with the 300 TSX and Reloader 15 powder. Barnes lists the loads in there information. I've been told my load is hot but I am shooting it in my rifle in 80 and 90 degree weather with no problems and shoots well under an inch at 100 yards for 3 shots. This is my best load for accuracy in this rifle so if it were me I'd try to make the solids work around it. | |||
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Thanks Snell. I have tried the rl 15. The chrono must have had a bad day, because at close to 100% capacity, the shots were a much slower than yours How many grains do you use? "You only gotta do one thing well to make it in this world" - J Joplin | |||
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79 to 80 grns of H4350 Mike Legistine actu quod scripsi? Never under estimate the internet community's ability to reply to your post with their personal rant about their tangentially related, single occurrence issue.  What I have learned on AR, since 2001: 1. The proper answer to: Where is the best place in town to get a steak dinner? is…You should go to Mel's Diner and get the fried chicken. 2. Big game animals can tell the difference between .015 of an inch in diameter, 15 grains of bullet weight, and 150 fps. 3. There is a difference in the performance of two identical projectiles launched at the same velocity if they came from different cartridges. 4. While a double rifle is the perfect DGR, every 375HH bolt gun needs to be modified to carry at least 5 down. 5. While a floor plate and detachable box magazine both use a mechanical latch, only the floor plate latch is reliable. Disregard the fact that every modern military rifle uses a detachable box magazine. 6. The Remington 700 is unreliable regardless of the fact it is the basis of the USMC M40 sniper rifle for 40+ years with no changes to the receiver or extractor and is the choice of more military and law enforcement sniper units than any other rifle. 7. PF actions are not suitable for a DGR and it is irrelevant that the M1, M14, M16, & AK47 which were designed for hunting men that can shoot back are all PF actions. 8. 95 deg F in Africa is different than 95 deg F in TX or CA and that is why you must worry about ammunition temperature in Africa (even though most safaris take place in winter) but not in TX or in CA. 9. The size of a ding in a gun's finish doesn't matter, what matters is whether it’s a safe ding or not. 10. 1 in a row is a trend, 2 in a row is statistically significant, and 3 in a row is an irrefutable fact. 11. Never buy a WSM or RCM cartridge for a safari rifle or your go to rifle in the USA because if they lose your ammo you can't find replacement ammo but don't worry 280 Rem, 338-06, 35 Whelen, and all Weatherby cartridges abound in Africa and back country stores. 12. A well hit animal can run 75 yds. in the open and suddenly drop with no initial blood trail, but the one I shot from 200 yds. away that ran 10 yds. and disappeared into a thicket and was not found was lost because the bullet penciled thru. I am 100% certain of this even though I have no physical evidence. 13. A 300 Win Mag is a 500 yard elk cartridge but a 308 Win is not a 300 yard elk cartridge even though the same bullet is travelling at the same velocity at those respective distances. | |||
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I thought it might have been a typo...I suspect that the 375 H&Hs that can drive a 300 grain TSX to 2700 are fairly thin on the ground. Most can get a 300 grain something to 2600 though. I load 78 or 79 grains of H4350 for 2600 with a 300 grain A-Frame. For a 300 grain TSX @ 2700 fps, I built a 375 Weatherby. It takes about 86 grains of H4350 to do it too. And FWIW, I never had any luck with Reloader 15 in the three 375s I've tried it in. Others have had good results, but my rifles don't want to cooperate. "There always seems to be a big market for making the clear, complex." | |||
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I've been told this load is hot so start lower but I load 71 grains of RL-15 for an average of 2694 fps in my 24" barrelled Win M70. Barnes shows all the way up to 73 or 74 grains and I've been up to 73 grains but accuracy was at 71 grains. I did not develop this load with a chronograph only after I found a really accurate load did I check the speed. | |||
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Mine likes RL15 although last safari I used 350gr Woodleighs. Just curious, why is 2600fps important? Have gun- Will travel The value of a trophy is computed directly in terms of personal investment in its acquisition. Robert Ruark | |||
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I never chrono'ed the loads, but with 66gr Rl-15, I got my tightest groups with TSX's and SAF's. I think I had to adjust the loads to get similar POI with the Barnes solids. Caleb | |||
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Jack, I think RL 15 is your best bet staying within the Barnes loading manual parameter of 65-71.5 gr. with the 300 TSX. An excellent bullet BTW. You'll need to back down on the banded solid load as they will shoot noticeably faster than the TSX. 2600+ fps in my expereince with the H&H is only attainable in a 25"-26" barrel and a stiff load. Good luck! Mark MARK H. YOUNG MARK'S EXCLUSIVE ADVENTURES 7094 Oakleigh Dr. Las Vegas, NV 89110 Office 702-848-1693 Cell, Whats App, Signal 307-250-1156 PREFERRED E-mail markttc@msn.com Website: myexclusiveadventures.com Skype: markhyhunter Check us out on https://www.facebook.com/pages...ures/627027353990716 | |||
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2700 fps out of a 300gr TSX is way over book and probably dangerous. 2600 is doable, I can gt close with 76gr of H-414 F 215 primers and WW cases. Here's my hunting load with A Frames but i've also tested it with TSXs and equal accuracy, MV 2550-75 jorge 375 target USN (ret) DRSS Verney-Carron 450NE Cogswell & Harrison 375 Fl NE Sabatti Big Five 375 FL Magnum NE DSC Life Member NRA Life Member | |||
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Blacktailer, what sort of loadings got the Woodleigh up there, if you do not mind sharing? Rich | |||
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I don't remember the exact load but I used the max load recommended by Barnes for RL-15 and the X (not TSX) bullet of the same weight. This was before data was out for the TSX and was what Barnes was then recommending. I got 1" groups from my cz550 and both bullets shot to about the same POI at 100 yards. As I recall velocity was 2400-2500 fps though. I agree with others that 2700 is pushing it. With well used Federal brass (3-4 loadings) I was getting gas leaks around the primers. BTW I was using all federal brass and CCI primers. Tanzania in 2006! Had 141 posts on prior forum as citori3. | |||
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I have tried alot of powder combinations in 4 different .375 rifles and I think the best powder is Vitvouri 540. It's a little hard to find but I loaded both 300 grain TSX's and banded solids at over 2600 fps and the loads shot within an inch of one another. I just got back from CAR and the loads worked great. Just use the Barnes loading book and use the max or close to max loads for V-540. The solids will shoot a little faster but with luck they will shoot close to the TSXs. MMP | |||
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The Accurate Reloading Forums THE ACCURATE RELOADING.COM FORUMS Rifles Big Bores 375 Load Help, Please
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