Hard chambering

[irondude]

After full length sizing using Forester benchrest dies my bolt is hard to close, I even bumped the shoulder and trimmer the cases to the correct length, used a match grade reamer for the chamber. Caliber is 300wsm using W/W brass, primers are fully seated, using once fired brass from the same rifle. Thanks for any advise.

 

[ChrisGarrett]

Re: Hard chambering

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: irondude</div><div class="ubbcode-body">After full length sizing using Forester benchrest dies my bolt is hard to close, I even bumped the shoulder and trimmer the cases to the correct length, used a match grade reamer for the chamber. Caliber is 300wsm using W/W brass, primers are fully seated, using once fired brass from the same rifle. Thanks for any advise. </div></div>

You're not bumping the shoulders back enough.

If you had the Hornady/Stoney Point headspace gages, or even the RCBS Precision Mic dohickey, you'd be able to measure a fired case and then set your sizing die to bump the shoulders back .002" and they should chamber fine.

Chris

 

[427Cobra]

Re: Hard chambering

If you don't have tool to measure headspace, remove the firing pin, remove the ejector and size the cases until you can feel a slight resistence when closing the bolt.

 

[Fuzzball]

Re: Hard chambering

"You're not bumping the shoulders back enough."

True 99% of the time.

 

[Hummer]

Re: Hard chambering

You can also have a die that the chamber is cut too deep in and it hits the shell holder before the shoulder starts to move down. Coat shoulder of case with magic marker etc and see if you are contacting the die on the shoulder.

 

[Victor N TN]

Re: Hard chambering

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Fuzzball</div><div class="ubbcode-body">"You're not bumping the shoulders back enough."

<span style="font-weight: bold">True 99% of the time</span>. </div></div>

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