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22-250 on #1 RB action

DupontDupont Member Posts: 129 ✭
edited May 2002 in Ask the Experts
Need your opinions! I have just aquired a #1 rolling block that is chambered in 22-250. Bought the rifle to convert to a 45-90. This rifle looks very nice in the configuration it's in. Would you consider it safe for the 22-250 cartridge as long as full power loads are not used??. Or would it just be safer to go ahead and rebarrel to the 45-90? The 45 would only see Black Powder loads.
What do you all think!!
Thanks
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Comments

  • captkirk3@dslextreme.comcaptkirk3@dslextreme.com Member Posts: 3,804
    edited November -1
    The ACTION is strong enough...But is the Barrel? Thats the question...If its a Modern Rebarrel and chambered for the 22-250 then I would think that there would be No problem...Working with the information given....!To be safe I recommend that You take it to a reputable Gunsmith for a one on one, Hands on evaluation...Best...

    Captain Kirk, Tech Staff
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  • v35v35 Member Posts: 12,710 ✭✭✭
    edited November -1
    There are two number one actions; a smokeless model 1902 and a black
    powder 1867 version . Both will take either 45-70 and 45-90 safely.
    You can tell which you have by measuring the barrel diameter at the breech. On the 1902 it's 1.055" and .975 on the 1867. The 1867 version
    is not considered strong enough for high pressure smokeless ammo while the model 1902 was designed for the higher pressure, smokeless 7mm Mauser cartridge.
    The firing pin diameter for the 1902 is .080. The bolt face has to be bushed on the black powder model and redrilled for a smaller diameter
    firing pin for modern ammo.
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  • DupontDupont Member Posts: 129 ✭
    edited November -1
    The barrel on this rifle is an aftermarket, no exactly sure who made it? Can't find a makers mark on it anywhere. Dont have a caliper to measure the breech. a small tape measure show a touch over 1 inch, but I know this is not an acurate way to measure it. The barrel at the front part of the breech does measure 1+1/8+ inch,But the breech block end could be alot smaller? The breech block has been bushed and the pin replaced, or turned down. This one has the ejector on the side of the barrel, instead of the one that rotates with the breech block. Will borrow a caliper to get the correct measurment on the breech. Think I will go ahead and have it rebarreled any way. Really have no need for the 22-250.
    Thanks to both of you for the input!
    Dupont
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  • MIKE WISKEYMIKE WISKEY Member Posts: 10,036 ✭✭✭✭
    edited November -1
    I READ THAT P.O. ACKLEY DID BLOW-UP TESTING ON VARIOUS ACTIONS AND THE REM. ROLLING BLOCK SMOKELESS ACTION WAS VERY STRONG BUT TENDED TO 'SPRING' UNDER HIGH PRESSURE. IF YOU KEPT THE PRESSURES DOWN TO THE 45,000 CUP RANGE IT SHOULD BE OK (.222 REM./ .223 VELOCITY).
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  • DupontDupont Member Posts: 129 ✭
    edited November -1
    Just got the rb measured today seems it's an older Black Powder frame.
    Decided to just go ahead and rebarrel to the 45-90!
    Thanks
    to all who gave great info and advice!!
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  • v35v35 Member Posts: 12,710 ✭✭✭
    edited November -1
    Good move. The 22-250 conversion was a bad idea. 45-70s will also shoot very well out of a 45-90 chamber. I think Montana Armoury does Octagon, semi octagon and other specialties for these old rifles in large calibers. A set of windgage sights and double set triggers and you'll be well fixed for the Creedmore matches.
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