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Discussion Starter · #2 ·
I don't have first hand experience with this but a friend of mine does and he said he can only get 62 grain bullets to shoot out of his rifle at the 1/7 twist.
 
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Discussion Starter · #3 ·
For a 1/7 twist you need to be 62 grain and above. Go for those 77gr SMK's, as they work slick in a 1/7.
 
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Discussion Starter · #4 ·
Trying it is the only way you'll know for sure. I have an old Savage with 1:9 which will plant three carefully-loaded 55 grain Winchester SP's under an inch at 200 yards, and I have a friend with a 1:7 M4gery that cuts clover-leaves at 50 using Federal 55 grain FMJ.

Each gun is a law unto itself. We've even got a .50 Hawken with a 1:66 barrel, that shouldn't really shoot anything but ball well; but I guess it didn't get the word, because with 100 grains of Pyrodex and a 385 Great Plains bullet, 3 inch, 3-shot 100 yard groups are the norm.

Try it and let us know.
 
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Discussion Starter · #10 ·
All of my rifles have 1-7 barrels and I have never had any problems with low weight bullets. I have used bullets as low as 35 grains and they worked just fine. I have shot hundreds of 55gr bullets through my rifles with good accuracy and no problems. It is a myth that the 1-7 twist doesn't work with low weight bullets. Most rifles produced in todays market will work just fine with 55FMJs. I have actually noticed that Black Hills Reman 55FMJ works better than any other 55FMJ load on the market. There are many other factors to consider than just bullet weight but you should just buy some ammo or load some ammo to find the load for your rifle.
 
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Discussion Starter · #11 ·
Take that low weight of a bullet and try to hit super tight groups beyond 200-300m and you will lose accuracy at that twist rate. Well my 2 1/7's do.. but that also is related to the shorter barrel.
 
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Discussion Starter · #13 ·
Some shoot the 55's quite well and some dont it's basicly a crapshoot either way.
Agreed. I can hit a 500 yard, 16in gong with my 16in 1-7 twist rifle. that is all the accuracy I need for that rifle. That rifle also produces amazing accuracy with match grade 55 gr bullets and 24 grains of RE15. It works much better with 75 grain Hornady BTHPs but I don't load those that often. They are much more expensive.
 
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Discussion Starter · #14 ·
I've noticed that Re15 keeps coming up in my favorite small bore .22 cal reloads also in my SAKO 22-250 and in a 1in 8" Armalite heavy 20 stainless NM upper 1/2 MOA or less 5 shots at 200yds is the rule not the exception.
 
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Discussion Starter · #15 ·
I've noticed that Re15 keeps coming up in my favorite small bore .22 cal reloads also in my SAKO 22-250 and in a 1in 8" Armalite heavy 20 stainless NM upper 1/2 MOA or less 5 shots at 200yds is the rule not the exception.
RE15 meters well, has a very consistent burn, works well with small calibers, and works well with a varying range of bullets weights from low to high. Some of my 75gr handloads through my match rifle were accurate enough to give me a 15 shot, 2in group at 300 yards.
 
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Discussion Starter · #17 ·
I think the original rub with the 1:7" bbls. was that they wouldn't shoot the light hollow point varminter type bullets well because the high rate of spin on the bullets would disentigrate the thin copper jackets. Other than that I think you should be fine for casual plinking with FMJ 55grns.. And I agree with others here, go with the heavier bullets for "must have accuracy" times. Happy shooting!
 
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