[QUOTE=green sourdough;663947]Thanks for the tips.
Was hoping to here that there may be hope for the '98 yet.
I was shooting around an inch with the 250g Hot cores and thought that was pretty good. I am really liking the cartridge.
Because the bolt closed fine with the no-go gauge I thought there might be excessive headspace. I will definitely try adjusting the sizing like you suggest.
Unless I missed something here a bolt closing on a NO-go gage is a potential sign of excessive head space. A bolt that closed on a no-gage would indicate a chamber that was cut too deep for good accuracy & is a problem from the get go. Your cases fired in a large chamber will not be usable in another small or normal chamber without full length sizing. Only a problem for you if you have more than 1 rifle in 35 Whelen. Not likely someone else could use your reloads in their 35 Whelen unless they also have a large chamber. You should check your chamber with a Field gage to check to see if you have a problem or not. New cases should only require neck sizing to correct any denting of the neck from the factory unless you have a very tight chamber which it doesn't sound like you have. Chamber your new cases. If the bolt closes with no problem all you need to do is expand the neck so you can insert the bullet correctly. When you fire the new round the case will size to your chamber correctly (assuming your chamber is not screwed in some way other than big).
- GO: Corresponds to the minimum chamber dimensions. If a rifle closes on a GO gage, the chamber will accept ammunition that is made to SAAMI’s maximum specifications. The GO gage is essential for checking a newly-reamed chamber in order to ensure a tight, accurate and safe chamber that will accept SAAMI maximum ammo. Although the GO gage is necessary for a gunsmith or armorer, it h no problems check the neck to busually has fewer applications for the collector or surplus firearms purchaser.
- NO-GO: Corresponds to the maximum headspace recommended for gunsmiths chambering new firearms. This is NOT a SAAMI-maximum measurement. If a rifle closes on a NO-GO gage, it may still be within SAAMI specifications or it may have excessive headspace. To determine if there is excessive headspace, the chamber should then be checked with a FIELD gage. The NO-GO gage is essential for checking a newly-reamed chamber in order to ensure a tight and accurate chamber.
- FIELD: Corresponds to the longest safe headspace. If a rifle closes on a FIELD gage, its chamber is dangerously close to, or longer than, SAAMI’s specified maximum chamber size. If chamber headspace is excessive, the gun should be taken out of service until it has been inspected and repaired by a competent gunsmith. FIELD gages are slightly shorter than the SAAMI maximum in order to give a small safety margin.