HAVING A .375 HH BUILT BY AHR...LOOKING AT A HANDLOAD FOR BARNES 300 gr TSX BULLETS. THIS WEAPON WILL HAVE 22.5" BBL. NEED SOME DOPE FOR THIS SET UP AT LEAST AS A STARTING POINT.
IF ANYONE HAS A BITCH ABOUT MY CHOICE OF CALIBER THEN SMOKE A POLE.
I've been working on loads for my M70 375H&H over the last few months.
One of these is the 300gr TSX that comes straight out of the Barnes loading manual. Note that the bullet was seated to a 3.57" COAL per the manual. Remington brass, 71.5gr RL15, Fed 215 primer. I have a pic of a 3 shot group that if I knew how to post, I would.
Two of the shots overlapped slightly in a perfect vertical line leaving one solid hole. The third shot was just slightly above the middle shot and about 1/3rd of a bullet diameter to the left of those first two. So imagine 3 shots in a nearly perfect vertical line, but the top hole being slightly left. I mic'd the distance between the top edge of the top hole and the bottom edge of the bottom hole to get an outside to outside measurement of 0.987".
Posts: 584 | Location: Phoenix, AZ | Registered: 13 August 2004
"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
Posts: 12871 | Location: Kentucky, USA | Registered: 30 December 2002
Originally posted by drewhenrytnt: Brian, are you intentionally shouting at us?
When you type in all caps that is the understood reality.
Please read the post to Mr. Sellers...no offense intended. As I replied to Mr. Sellers, I was just in a hurry. Any suggestions or is this a lesson in corresondence? If so, thanks. I am looking to get some real insight in reference to loads for use on danderous game with this caliber/projectile, as well as reliability. As you probably know, killing something that will kill you is just that...and pronunciation is irrelevent...except where the shot is placed. I will attempt to do better in the future.
375H&H is one of those cartridges that is easy to load for and likes a variety of powders. I favor RL15 but a lot of others will probably work in your rifle. The 300TSX is hard to beat. Seat the bullets to the COL in the Barnes manual and they should feed just fine. Good luck and happy hunting.
Have gun- Will travel The value of a trophy is computed directly in terms of personal investment in its acquisition. Robert Ruark
Posts: 3831 | Location: Cave Creek, AZ | Registered: 09 August 2001
Frank and FJOLD...thanks for the info. Part of my concern is having differing pressures with respect to climactic conditions with certain powders. Is there a powder that will produce consistent pressures through temperature extremes while giving similiar performance (i.e. African vs. the Southeastern U.S.)?
Blacktailer, thanks for the dope and COL advice. In reference to your account name; Columbia Blacktails I am assuming--the Holy Grail. I was hunting around Jackson County, Oregon last fall...no big ones, lots of bear though.
KingB - No offense taking for sure. Kind of a heads up thing is all that was intended. Hodgdon Varget is one that is not temperature sensitive and a good start might be: 67.0 grs. of Varget with the Barnes 270gr. TSX. FPS whould be around 2620. A little flatter than the 300 gr, mabe a little more penetration with plenty of thump for most critters Works real well in my .375 H&H. Good luck.
Larry Sellers SCI Life Member
Posts: 3460 | Location: Jemez Mountains, New Mexico | Registered: 09 February 2006
I've had a host of .375 H&H's and most preferred RL 15 and around 72 grains with the 300 grain bullets. I like a 24" barrel, but there is nothing wrong with a 22" and I just recommended that length to a friend guide/outfitter for a back up rifle for mountain grizzly for close shots (since they rejected my preference for an over 40 caliber). Seating depth matters on some barrels. Fed 215 primers work well.
It is an easy caliber to handload and shoot. It is one of my favorites.
Posts: 97 | Location: Texas | Registered: 21 December 2008
Also had Wayne build a 375 H&H for me a couple of years ago. Worked up Nortfork 270 Gr SP, with 72 Gr of RL-15 Rem Brass and 215 FedGM primers. Velocities from 2670-2690. Great accuracy and used on Plainsgame in Namibia in 2009.
Posts: 2180 | Location: Rancho Cucamonga, Ca. | Registered: 20 February 2008
Mine has liked 76 grains of 4350 and 300 grain bullets, Hornady, Sierra and Nosler just fine.
Mart
"...I advise the gun. While this gives a moderate exercise to the body, it gives boldness, enterprize, and independance to the mind. Games played with the ball and others of that nature, are too violent for the body and stamp no character on the mind. Let your gun therefore be the constant companion of your walks." Thomas Jefferson
Posts: 993 | Location: Wasilla, AK | Registered: 22 December 2002
Im kind of old style, and found 4064 works with almost any bullet weight and any of the styles or manufacturers. Maybe give up a bit of velocity but it works with everything. Also like RL-15 and Varget, which are both very temperature stable. As others have in a nice way suggested, maybe use a lighter 270 grain w the Barnes line, as the depth of hollow point and diameter are same for 270 and 300 grain. Barnes has narrow velocity band they work well in but 375 is not stressing it. North Fork is my preference but our host Saeed has certainly proven the Barnes out on buff. NF just better.
Andy
PS Not as OCL sensative either.
Posts: 1278 | Location: Oregon | Registered: 16 January 2004
I've tried just about every powder in 375 H&H and will have to say that my best load is 68 grains of IMR 4064 with all bullets. This is the only load that I got 235,270 and 300 grain to shoot same POI as was always said a 375 would do.
Sam
Posts: 2846 | Location: NC | Registered: 08 July 2006
I haven't played with 300 gr loads, but Reloader 15 is excellent for mid weight bullets If you get the chance, try 74-75 grains with the 270 gr TSX or 260 gr Accubond. both these loads have been very accurate for me in multiple rifles. The Accubond is a little more affordable too and has the same accuracy as the TSX. 74-75 grains puts these bullets right about 2700 fps and 1/2 to 1 inch groups. Oh yeah, my barrels have been 24 inches, so 22" should be similar
srose, you seem to have found another very useful combo. do you have any velocity for those loads? I might try it out.
Posts: 973 | Location: Rapid City, SD | Registered: 08 July 2005
I have not chronoed the 235 or 270 in years but might be able to look in my records and tell you what velocity was. With 300 grain Hornady SPs the velocity was 2483 fps out of my double.
Sam
Posts: 2846 | Location: NC | Registered: 08 July 2006
yeah, I don't even bother with anything under 250 gr because the 260 and 270 gr bullets shoot flat enough for me. and the 270's work on everything up to african dangerous game.
Posts: 973 | Location: Rapid City, SD | Registered: 08 July 2005
All, thanks very much for the dope. Wanted to check this sooner and give replies. I am currently deployed and it is sometimes hard to get to my other traffic.
Again thanks for the info and if someone has any thing else please send it my way.
