Haven't chrono'd it, but it shoots one-hole six rd. at fifty and 1" or less 3 rd. at 100 yards, consistently from late model Winchester Mod. 70 Safari Express, 24" bbl.
Posts: 11729 | Location: Florida | Registered: 25 October 2006
That use to be my test loadd witha 375. If did not shoot reasonably well with that load then there was probably a problem with the rifle, scope or mounts.
Same load with 300 Sierra also good but I have not seen it used in as many 375s.
I think your 76.5 grains of IMR 4350 will be about 2450 f/s plus.
Posts: 271 | Location: Sydney Australia | Registered: 19 March 2007
Model 70 Winchester, 79 gr H4350 (compressed), 300 gr Hornady interlock. 2550 fps, sub MOA at 200 yards every time. Took a doe antelope with it because I could and a trophy bison.
Posts: 321 | Location: Green Forest, Arkansas | Registered: 24 March 2007
SuperSpeed, I agree 78 grs of 760 with a 300 gr has long been the standard load for myself and a couple freinds. Just tried 77 grs with nickle brass for the first time in my new 375 with the 300 TSX. It went slightly under an inch. Guess what I'm trying again next time out.
Thanks for the info. Book data shows around 2500 therabouts. According to Hornady's book, I'm .1 grain over max, but I was using Swift's book for the A Frame load before I obtained the Hornady book.
Those Hornady's really copper up the barrel, but they're relatively cheap and are very uniform and I always get great accuracy from them.
Having to switch to Interlocks now, as the IB has been discontinued. Too many wounded Buffalo, I would imagine.
Posts: 11729 | Location: Florida | Registered: 25 October 2006
77 grains of H414 or 760,210 primers and 300 gr Hornady roundnose Interlocks work great in a couple .375s I have. Actually it works well with practically any bullet from 270 to 300 including 2 weights of TSXs. For whatever reason Partitions won't shoot in either.
71 grains of RL-15 with a 300 grain Barnes Triple shock, honest .5" at 100 yards 3 shots. This is from a Win M70 Classic Stainless with a 2.5-8 Leupold on it. I haven't chronied this load but i don't care it is accurate and just feels dependable in my rifle.
Posts: 5603 | Location: Eastern plains of Colorado | Registered: 31 October 2005
Snellstrom, I chronied that load out of my M70 Super Express w/ 24" last Sunday at 2676. I know that sounds fast, at least to me, but the chrony was confirmed to be reading correctly with other known rounds and double-checked by the other guy I was shooting with. 70gr. RL15 gave 2613. Needless to say, I think I've found my powder.
David Walker
P.S. No pressure signs at all. Sweeettttt!!!
Posts: 539 | Location: NE Alabama | Registered: 11 February 2007
Hey David What kind of accuracy is that producing for you? I should chrony mine as well but I've just been lazy about it I guess. My .375 has a 24" barrel as well.
Posts: 5603 | Location: Eastern plains of Colorado | Registered: 31 October 2005
I shot it through the chrony again on Sunday and got 2611, with the only change being a Fed 215 instead of the CCI. The 300gr. solid w/71gr.s gave my 2630, with Fed215. I haven't shot these for accuracy yet, just working up to velocity and checking for pressure signs. Also been working on 350 Woodleigh loads. With the 350's, 72grs. of H4350 gave me 2384 for the solid and 2343 for the protected point. I'm gonna load more of each of these loads to test consistency and accuracy in the next couple of weeks. Just got to find time to set down at the bench.
David
Posts: 539 | Location: NE Alabama | Registered: 11 February 2007
Heh guys. Put a XS ghost ring on my Custom shop Remington for fun. With only 53 grains IMR3031 and a 300 gr. RN; (about 2,150 FPS), too much fun! Like plinking with a big %$@ .30-30, but hits plenty hard for hunting medium game. Probably shoot 100 of those for every one full power loading.
