Anyone have an accurate pet load for this historic cartridge? I'll be reloading the 140gr. Nosler Accubond in the very near future. Good brass was difficult to locate in Canada, however did find a box of new Nosler, but not cheap. Thanks!
7x57 Mauser Pet Loads?
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Track; I have been shooting the 7x57 for at least 5 decades...one of my all-time favorite chamberings.
Both my present 7x57 rifles are of modern construction, so can be loaded to the potential of the cartridge.
Try the following, approaching 3 grains below and working up.
140 AB, WW or PPU cases, CCI 200 [or BR-2] 51 grains of Reloder 17
140 AB " " " " 55 grains of Reloder 22 [compressed load, but works well]
140 AB " " " " 53 grains of IMR 4831
FWIW, R-P Brass is quite a bit heavier in the web area, and will not accept these charges safely.
Regards, Dave.
Both my present 7x57 rifles are of modern construction, so can be loaded to the potential of the cartridge.
Try the following, approaching 3 grains below and working up.
140 AB, WW or PPU cases, CCI 200 [or BR-2] 51 grains of Reloder 17
140 AB " " " " 55 grains of Reloder 22 [compressed load, but works well]
140 AB " " " " 53 grains of IMR 4831
FWIW, R-P Brass is quite a bit heavier in the web area, and will not accept these charges safely.
Regards, Dave.
Thanks Dave! I believe my rifle will handle today's load's, but will start at the bottom and work-up from there. The rifle is a beautiful little pristine Brno 21H, double-set triggers, manufactured in 1950. I have all the said powders, and then some for load development. The rifle has a twist of 1:9.5, therefore, I'll also be trying the 160gr. accubonds. I'll be having a hoot with loading and shooting at the range.........the journey is always fun! Once again, thanks.
That is a very fine rifle you have, in a Classic chambering.
It should accept full loads without flinching.
Obviously, caution prevails.
My 7x57's are a 700 Classic Remington, and a M70 Featherweight Winchester.
D.
It should accept full loads without flinching.
Obviously, caution prevails.
My 7x57's are a 700 Classic Remington, and a M70 Featherweight Winchester.
D.
With the 7x57. I have taken at least 30 deer [Muleys, Whitetails and Blacktails] 8 moose and 2 Elk.
Also shot several Black Bears that weighed between 100kg and 200kg.
On only one occasions did I shoot an animal a second time, and that was unnecessary, lol.
I used to shoot a lot of Partitions, but lately, the Accubonds have been the choice.
mbogo3 mentions IMR 4350 and W760/H414. These work well also, but my best accuracy
so far has been with the Alliant powders. D.
Also shot several Black Bears that weighed between 100kg and 200kg.
On only one occasions did I shoot an animal a second time, and that was unnecessary, lol.
I used to shoot a lot of Partitions, but lately, the Accubonds have been the choice.
mbogo3 mentions IMR 4350 and W760/H414. These work well also, but my best accuracy
so far has been with the Alliant powders. D.
Ditto on that, but I tend to prefer IMR 4350. 50-52 grs, Winchester brass.
So is mine ...so you will like these loads........as you know a small ring 98 ............Win brass and Fed LR mag primers for all loads Hornady 140grSP /48gr-W760 3 shots .426" 140grSP Hornady/Win 760- 49gr-.676" 160gr Grand Slams 50gr RE#22 3 shots in one ragged hole 160gr Grand Slams 46gr IMR4350 also .676" at 100 yardsThe rifle is a Brno Model 21H, which is a Mauser action. Also, thanks for the loads.
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In my Brno 22f, same as yours but shorter barrel, I have found 160 - 175 gr. bullets are the most accurate. 140's are acceptable, but generally open groups to about 2" / 100 yds. Brno rifles have the usual long throat & fast twist that is actually designed for 175 gr RN. The fastest, flattest shooting bullets are not needed for hunting in the bush anyway, and the heavier ones penetrate better from odd angles. So I have settled on 160's as the best compromise. H4350, standard primers, and enough powder to reach 2600 fps in my 21" barrel.
Thanks for passing on your experience, Longwalker. I measured the twist several times and always came-up with 1:9.5. That is definitely an indicator that these rifles would prefer the longer/heavier bullets, and yes, they do have a very long throat. The barrel measurement on my Brno is 23.5". As mentioned, I will try both the 140 and 160gr. accubonds and will only choose the most accurate. I really don't need a fast flat shooter, I have other rifles that will complete that task. OOOOh it's going to be fun! Thanks again!
Yea, we're suppose to get hammered here overnight with snow, up to 15cm. I only crony my final loads which I'll use for hunting. Some guys chrony them during load development. I chrony "just to know the velocity"..........I take three shots and calculate the average.
