.243wssm
has anybody had any experence with the .243wssm i am thinking about buying one.thanks
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telejojo,
I got a 25 Wssm this past winter in the Ultimate Shadow model w/22" bbl. It is the last case introduced in that series. I can't say much about the .243 except it would seem to do about what the 25 does. For four more gr's of powder than the .257 Roberts it gets 25-06 velocities. It takes 8-10 more for the 25-06. I have chrono'd factory rounds at very low temps outside and with my shorter barrel got 150-200 fps less than factory published. I expected that.
I also get extremely good accuracy with the 75 gr. Hornady v-max. no matter what kind of powder I put behind it. My .257 doesn't get that kind of accuracy with them....same twist, go figure. I don't get near the accuracy with the heavier bullets, 1"-1.5" is the best I do. One strange thing is on Winchesters site they give two load recipes for 85 gr. and 120 gr bullets, 48 and 46 grs of 760. That seemed odd to me so I haven't tried either.
Bottom line: if you reload like Cole has it would be a worthwile endeavor. I would recommend though that if you want to varmint shoot with this get the Coyote model. The shadow and ultimate shadow won't produce accuracy with heavier bullets. But who knows too, there are a lot more .243 bullet types out there than .257.
If you hear any feedback from someone with a heavy barrel let me know if you would. -Thanks and good luck
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I have been loading for my Browning 243 wssm for about a year - and I use two different chrony's regularly - factory WW super x 100 gr runs 3150 fps - ww supreme 95 gr CT bullet runs 3250 fps with tack driving accuracy - data I reload from is on the Hodgdon site and it is light as evedenced by bolt lift, primer condition, head expansion and velosity. None of the Hodgdon data exceeds 3050 fps with 95 gr CT bullet. But in my opinion factory ammo is a little too hot - bolt lift is stiff and primers are really flat. The Hodgdon data duplicates the regular Winchester 243 and my accuracy is super. The short fat wssm's are a little hard to handle and load in the rifle - I like the wssm but I would be just as happy with a regular 243 win. No way I recommend exceeding published reloading data as the other poster did (foolish boy) to try and duplicate factory bullistics - those factories have powder not available to the hand loader. 0 -
quote:Originally posted by mbsams
I have been loading for my Browning 243 wssm for about a year - and I use two different chrony's regularly - factory WW super x 100 gr runs 3150 fps - ww supreme 95 gr CT bullet runs 3250 fps with tack driving accuracy - data I reload from is on the Hodgdon site and it is light as evedenced by bolt lift, primer condition, head expansion and velosity. None of the Hodgdon data exceeds 3050 fps with 95 gr CT bullet.
What is internal case capacity of the WSSM? It would seem logical that they would be able to exceed the performance of existing .244" cartridges, but from the numbers you all are posting my 6mm Rem. is actually more potent. My two favorite loads for the 6mm are 60 gr. HP @ 3617 FPS avg. and 90 gr. FMJ @ 3308 FPS avg. I guess I am just trying to see the advantage of the .243 WSSM, especially considering the rifles only hold 3 rounds, where my 6mm holds 4.
Also, what are the .25 WSSM's capabilities? I have a standard Remington 700 .25-06 (not improved) and I hunt with Sierra 117 Gr. BTSP that chrono 3194 15' from the muzzle.
I will note that while my 6mm and .25-06 loads slightly exceed published data (usually by no more than 6%), neither is flattening or piercing primers or giving extraction difficulty. The only .25-06 load I have worked that showed some pressure signs was a 100 gr. Barnes TSX @ 3585 FPS. The math I did for this load was supposed to only achieve ~3500 FPS. Perhaps the solid copper TSX produced higher pressures.
I dunno, I guess I just cannot see the advantage to the WSM or WSSM other than efficiency, which is really very minimal. I could care less if one cartridge requires 3 or 4 grains more powder to acheive the same velocity of another, because that cartirdge usually has greater capabilities overall, especially with heavier bullets. I have a friend who is one of those acedemic types that is all about efficiency of a cartridge. Me? I am all about velocity. My latest venture is a .25-300 Ultra Mag. Goal is a 117 grainer @ 4,000 FPS. It's gonna take a lot of powder and mean short barrel life, but it'll be flat shootin'. I let you all know how it works out.
It's easy to spot liberals-they are the ones who have no assets to protect and need every handout they can get. They have forbeyed themselves ascendence to a productive lifestyle.0 -
Dear Hunter375 - the advantage is in the rifle, not the cartridge - the rifle will be a shorter than a normal short action. Thus lighter, and handier it is said. My Browning Medallion with 3x9 scope only weighs 6.5 lbs. The short fat case is said to be more accurate too - but in normal sporter weight rifles I don't think it will matter. There is no ballistic advantage as you point out, and the down side is only 3 short fat cases fit the magazine. There are lots and lots of calibers -- mostly for the advantage of manufacturers - and never a free lunch. 0 -
Hunter375,
Most glad to hear you are a quarterbore man! The published velocities by Winchester for the 120gr. out of the 25WSSM is 2990. w/a 24" barrel. Same as what they publish their factory loads for the 25-06. There are other loads that exceed that. Nosler publishes two that nearly reach 3100, so it is quite do-able.
Also, to answer your question about the Barnes, the longer bearing surface of the round will cause increased initial pressure then blow it out like a cork from a champagne bottle.
I liked the 25WSSM as I saw an advantage to it. It can load hotter than what I have loaded. But, for now I am satisfied with what I am getting. To get back to the subject, my next project is a 6mm Rem in an already butchered Yugo M-48A. I haven't heard enough good about either the .223 or 243 WSSM's to go with one of them.
P.S. Hunter I want to be there when you find the rifle that will put a 117 gr out @4000 fps....no kidding!
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quote:Originally posted by sandwarrior
Hunter375,
Also, to answer your question about the Barnes, the longer bearing surface of the round will cause increased initial pressure then blow it out like a cork from a champagne bottle.
That's what I figured. But I like the terminal performance regardless, plus 5 of them grouped in .926" from my 700 BDL.
As for my .25-300, it will have either a 28" or 30" barrel to try to squeeze every flash out of every grain. I know modern gunpowder is capable of producing gassess that expand in excess of 5500 FPS, so theoretically I can pull it off. Heck, the .220 swift has been doin' it for decades, just with half the slug.
It's easy to spot liberals-they are the ones who have no assets to protect and need every handout they can get. They have forbeyed themselves ascendence to a productive lifestyle.0
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