Wild Monkey
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Due to the added costs of Wby Ammo, is it worth it to just build a 6.5-270 instead? / Edit I meant 270 Win as the brass is all over.
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6.5-RPM vs 6.5-270 & Improved
- Thread starter Wild Monkey
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Idaho Lefty
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That's what I'd,. "Do" ( 6.5-270 ) as, the .270 WSM Cartridge design is, a "Good" One and there is, Norma Brass available, IF, you Look for, IT !
Keep your Barrel "Cool", tho !
Both the .270 and .300 WSM's have "Survived" , almost 20 Years, because, the Case Design,.. IS,.. "Sweet" !
The 7mm WSM should have, HAD, a Longer Neck, long Action and longer "Throat" and then,.. NO need of, the 7 PRC !
SHORT Powder Column's and 30*- 35* shoulders, are,.. BEST for, accuracy !
Keep your Barrel "Cool", tho !
Both the .270 and .300 WSM's have "Survived" , almost 20 Years, because, the Case Design,.. IS,.. "Sweet" !
The 7mm WSM should have, HAD, a Longer Neck, long Action and longer "Throat" and then,.. NO need of, the 7 PRC !
SHORT Powder Column's and 30*- 35* shoulders, are,.. BEST for, accuracy !
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Hand Skills
Well-Known Member
6.5-280AI will offer a little more capacity than 6.5-270. I hope someone is able to chime in who has measured case capacity on both.
Weatherby sure is proud of their brass...!
Weatherby sure is proud of their brass...!
elkaholic
Well-Known Member
6.5 Sherman beats them all and uses the same brass.
Hand Skills
Well-Known Member
The RPM too?!
Idaho Lefty
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You can put, up to, 70 Grains of Most Powders in, a .270 WSM case,.. How FAST do you want to,.. Burn your Barrel, out ??
elkaholic
Well-Known Member
I was referring to the 270 based brass. Not sure what the RPM will do but the 6.5 Sherman will run 3250-3300 with a 140 and 26" barrelThe RPM too?!
Rich Coyle
Well-Known Member
WOW! How long does the brass last?
Stick with the 6.5 RPM and do not let anyone talk you out of it, including myself. IF you are considering a wildcat/non-SAAMI anyways, you might as well stick with it or do 6.5 Gibbs. As @shortgrass noted in a different thread, be careful about "Interdnet" claims.
elkaholic
Well-Known Member
Long enough with good brass and running N570
I agree. My brass was lasting 4-5 firings out of my 6.5 Sherman. I was using nosler 270 brass at the time, running 140 Berger's at 3339 FPS out of a 28" Hart with N570.
elkaholic
Well-Known Member
And Nosler brass isnt all that tough!
7.62 Gunner
Well-Known Member
With excellent Peterson 280 ai brass available and an easy neck down with off the shelf bushing dies, I'd go 6.5-280ai for sure
Surprised me too!
