The Accurate Reloading Forums THE ACCURATE RELOADING.COM FORUMS Guns, Politics, Gunsmithing & Reloading Reloading .375 H&H and 4350Go | New | Find | Notify | Tools | Reply | |
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I have finally decided that my two .375s perform best with 4350. The problem is the rifles perform equally well with either Hodgdon or IMR in the same quantity (79 grains under a 300-grain Hornady = 2500 fps even). Anybody else use 4350? Which one? Why? I've noticed a tremendous difference in what constitutes a maximum load with this powder between different loading manuals. Some say you are maxed at 78 grains, others say you can go all the way to 83 grains (I think I would crush my cases with that much powder). If my chrono is right, I'm happy with 79 grains. Also, 81.5 grains under a 270 grain bullet gives me 2650 fps, which will handle near about anything with antlers. | ||
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GAHUNER, That is the same load my 375 liked....i used 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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GA, You may as well stick with the one that is easiest to get a hold of, as performance is there for you. I used IMR 4350 @ 78 grains, and Win 760@ 80 grains (similiar burning rate) I too found that approaching 80 grains room was running out, so I tried IMR 4064 and haven't looked back. Pressures seem lower and the accuracy and recoil seem better. Got a wonderful cloverleaf with the 300 Hornady FMJ's with 69 grain in Win bra and F215'. One of the greatet cartridges ever foisted upon hunters.  Member NRA, SCI- Life #358 28+ years now! DRSS, double owner-shooter since 1983, O/U .30-06 Browning Continental set. | |||
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I use H 4350. In my rifle I am able to go several grains higher with it, and gain about 200 f.p.s. in velocity over what you mention. H 4350 is slower burning than IMR 4350 and can be used successfully and without overloads in compressed loads in the .375 H&H, at least in my rifle and in the loading data Hodgdon gave out several years ago. It is the best powder I've ever found in my rifle, at least, in this cartridge, for both 270 and 300 grain bullets. I use Winchester brass and the WLR (Winchester non-magnum) primer for the .375 H&H. "How's that whole 'hopey-changey' thing working out for ya?" | |||
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My 375 likes IMR4350 but I'm going to work up loads with H4350 because I have two other guns that really like the H4350. This way I can buy 8 Lbs at a time and use it. I tried 4064 because I have a couple of guns that shoot that powder well but my 375 loads were running about 100 fps slower at max charges than with IMR4350. 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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Bullet: Sierra 300 Grain Spitzer Boat Tail Powder: 78.7 grains of IMR-4350 Primer: Remington 9-1/2M Case: Winchester Firearm: Ruger Optics: Leupold 1x4 Velocity: 2596 FPS @ 15' from muzzle | |||
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Steve, You reckon that .3 grains difference between mine and yours is going to cause problems? Sorry, I just couldn't help myself.  Actually, this does bring up something I have wondered about for some time: Is there some general rule on what your max load will be with flat-based bullets versus boattails? I seldom use boattails and would like to start in some of my smaller calibers. | |||
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To be honest, I don't really think that 0.3 grains made any difference. I loaded 78.8, 78.9 and 79.0 and saw no difference in velocity or accuracy (my 78.7 does three in 1" at 100 yards). And, I never really bothered to compare similar bullets, except for base design. I always pick a boat tailed bullet if there is one available. And it has nothing at all to do with ballistics. It has to do with the reloading bench...they are easier to load... | |||
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I started with IMR-4350 but due to availability now use H-4350. Like GA Huntr, I've found what I consider discrepancies in loading info. I've tried almost everything possible from using a long drop tube and case vibrator to settle powder in the cases (Federal Nickel) but 75.0 grs. of H-4350 fills the case above the neck with considerable powder crunching when seating bullets (Nosler & PMP). Cheers, Number 10 | |||
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. . . . including game animals from the Pleistocene.  | |||
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Gerry, Somethin' in the milk ain't clean (sorry, it's a Southern U.S. colloquialism). You should easily be able to get 79 grains of H4350 in a .375 H&H case. Wonder what the problem is? Stonecreek, Notice I said "antlers" instead of "horns." I don't think I would consider this the ideal load for a charging Rhino. There are times when size does matter (just ask my ex girlfriends)! | |||
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