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.375 H&H
young n dum
Member Posts: 2,327 ✭✭✭✭✭
what is possible (safely and not pushing pressure limits don't want any kind of reliabilty issue ) as far as velocity and accuracy using 250-270 gran pills in a .375H&H?.....(fomr what I can tell 2650-2700 shoudl be about the top end...tell me if IM worng )
all loads appreciated and thanx!
To all the liberals.....bite me!
all loads appreciated and thanx!
To all the liberals.....bite me!
Comments
My loads for the 260 gr. Nosler Partition run right at about 2750 FPS. with three different powders. I can't address accuracy for you since that's a combination of you and your rifle system. The 260's in my rifles average about 1" for 5 shots at 100 yards in both hot and cold weather. This is prone with a bipod not from a bench.
I've been shooting a few of the newer Nosler AccuBonds and they might be a good bullet to try with the 375 H&H. They have been very accurate in some of my other tests. I haven't ever had a problem with accuracy when loading the Partitions, though. They have always been surprisingly accurate so it's an easy decision to use the Partitions when all else doesn't quite make the grade. Buy some, shoot some and make up your mind but see what the rifle has a taste for first.
Best.
I have no experience loading for my 375 H&H mag because when I first bought mine I bought a bunch of Federal Classic 270 grain shells for it to "burn" through and then would start to develop my own loads, well I found that this factory load grouped so well in my rifle that I had no reason to "load" for it. This factory load with 270 grain bullet leaves the muzzle at 2690 FPS, this is right in there with your estimate of top end.
A year or so (2) ago NRA's Rifleman or Hunter magazine had a good article on loading for the .375 I saved it now if I could find it?[;)]
.375 Caliber 260 grain Nosler Partition
Zero @ 219 yards = Maximum Point Blank Range (MPBR) of 256 yards for a 6" target diameter. Recoil velocity for this load is 17.1 fps, and the recoil energy is 40.8 foot-pounds.
Range (yds.) 0 100 200 300 400 500
Path (in.) -1.5 2.8 1.1 -7.9 -26.7 -57.6
Velocity (fps) 2707 2426 2038 1916 1690 1484
Energy (ft.-lbs.) 4230 3398 2397 2119 1648 1271
Time of Flight (s.) 0 0.117 0.248 0.395 0.562 0.752
Path Adjust (clicks @ 1/4 MOA per click) 0 -11 -2 +10 +26 +44
Distance from Aim (in.) 0 2.8 1.1 7.9 26.7 57.6
IPSC Power 704 631 562 498 439 386
Hatcher's Power 345152 309379 275823 244312 215421 189237
Taylor's Knockdown 37.70 33.80 30.13 26.69 23.53 20.67
Optimum Game Weight 2011 1449 1027 713 489 332
From the .375 H&H Magnum Page:
Nosler makes one of the greatest bullets of all-time: the Partition. The Partition is a controlled expansion soft-point bullet designed to provide reliable expansion with sufficient weight retention to continue penetration. Partitions are regarded by many as the best all around bullet for any game in any caliber. For the .375, Nosler produces the Partition in two bullet weights: 260-grains for large animals such as elk and certain African plains game and a massive 300-grain bullet for large, dangerous game such as North America's great bears and the African Big Five (elephant, white rhino, Cape buffalo, lion and leopard).
Nosler 260 gr. Ballistic Tip
Nosler 260 gr. Spitzer "Safari Tip" (Sectional Density = 0.264; Ballistic Coefficient = 0.473; Catalog # 37260)
But what about .375 caliber Ballistic Tips? Well, they're finally here!!! Several years ago, one of my visitors wrote and asked if I knew whether or not Nosler planned on producing .375 caliber Ballistic Tips. Since I did not, I wrote Nosler to find out. My letter was promptly answered by Matt Smith, Nosler's Ballistics Supervisor. Matt stated that by design, Ballistic Tips are designed for use on smaller animals (up to about 400 pounds). Also, stability issues are a concern on heavy caliber Ballistic Tips because of the light weight and sharp profile of the polycarbonate tip. Matt did mention that a Ballistic Tip should not be indefinitely ruled out as Nosler's R&D department is always trying out new bullets. Now after a few years of R&D, they're here!!! I have several batchs loaded, but I simply have not had a chance to try them out. I'll report back after I shoot some.
As for the loading data for the new "Safari Tips," I contacted Nosler's customer service department who informed me that the reloading data for the 260 gr. "Safari Tips" is the same as the reloading data for the 260 gr. Partitions as listed in their Nosler Reloading Manual #4.
Chris sent these photos of a 260 Gr. Ballistic Tip recovered from a 250 pound hog shot at approximately sixty yards. Chris said the portion of the bullet recovered was just the jacket and only pieces of the lead core were found. The bullet entered behind the left shoulder broke a rib and was found on the opposite side after breaking a second rib. No major bones were struck only the two ribs. The hog was a sow with lots of fat but did not have a heavy shield like a boar. Total recovered weight was 117.1 grains.
Here is my loading data for Nosler's 260-grain and 300-grain Partitions. These loads have worked for me, but remember, ALWAYS start with the lowest published load and work up!:
260 gr. Nosler Partition (.375")
Sectional Density - .264
Ballistic Coefficient - .314
Bullet Powder Primer Case Velocity
Nosler 260 gr.
Partition IMR 4350
78.5 gr. (Max. Load) WLRM Winchester 2,707 fps