450 bushmaster build

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450 bushmaster build

Postby overtheir » Sat Dec 22, 2018 7:18 pm

I just received my barrel it took 4 months to get to me and the postal service took almost 2 weeks to deliver anyway I have a savage model 10 top bolt release in 308 ; removed the barrel cleaned everything had to open up the recoil lug it was at minum the barrel thread at max , anyway I dont have the gauges so reading all over the net I followed instruction to the T I think . I took a once fired case resized it with the hordany dies it measured 1.69 , screwed the barrel in until it touched the bolt face , placed the case in the chamber and tried closing bolt , no way it would close so screwed barrel out until it did a little at time . Once it closed I took some scotch tape it measured .01 built it up to 1.72 placed it in the barrel tried the bolt and it would not go half way (handle ). .After wards I took some live factory rounds and tried them one at time out of 6 rounds 5 of the 6 bolt was tight going down in full postion so does this mean I need more adjustment to increase the head space . Thanks
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Re: 450 bushmaster build

Postby Al in Mi » Tue Dec 25, 2018 2:46 pm

Welcome and sorry for missing this, but yea you need to back it off some.

I dont have gages but the last savage I did I popped the ejector out, went with your tape method but to 1.710, set barrel and tightened it up. 300+ rds later no issues.
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Re: 450 bushmaster build

Postby Tbk » Tue Dec 25, 2018 5:43 pm

Why not rent the appropriate gages? Its not expensive and is a much surer method of doing the job right.
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Re: 450 bushmaster build

Postby overtheir » Tue Dec 25, 2018 6:58 pm

Gauges Im in Canada about 2.5 hrs from the boarder so I m not sure if they will send them to me I called left a message .
Why do u need to remove the ejectore ? does it give you a false reading ?? Thanks
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Re: 450 bushmaster build

Postby Tbk » Tue Dec 25, 2018 7:20 pm

Call 4d reamer rentals. They'll have you up and running as fast as fed ex, ups, whoever can get them to you. Good guy to work with
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Re: 450 bushmaster build

Postby Al in Mi » Tue Dec 25, 2018 8:09 pm

overtheir wrote:Gauges Im in Canada about 2.5 hrs from the boarder so I m not sure if they will send them to me I called left a message .
Why do u need to remove the ejectore ? does it give you a false reading ?? Thanks


Less pressure on the tape was my thinking. If using gages I wouldn't take it out.
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Re: 450 bushmaster build

Postby overtheir » Thu Dec 27, 2018 7:50 pm

Thanks for the info and I trying to call 4d rentals bad time of year I guess . Mario
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Re: 450 bushmaster build

Postby overtheir » Sat Jan 05, 2019 6:55 pm

well I v tried 4 d rentals they will not rent gauges to me since Im in Canada (understand but frustrated ) and i offered to buy a go gauge but they say I need to buy reamer and gauges can any one help . Thanks
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Re: 450 bushmaster build

Postby Al in Mi » Sun Jan 06, 2019 7:13 am

Give Dave Manson @ Manson Reamer a call, not sure if shipping Canada is a problem all around or not, but he'd have gauges.
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Re: 450 bushmaster build

Postby overtheir » Tue Feb 05, 2019 6:01 pm

Just a quick up date got the Go gauge and set it up and finally hit the range I took 3 shots with factory ammo it went bang and no issues I only took 3 shots breaking in the barrel Thanks Al for all your help and others also will post pic later of targets and gun . Mario
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