Re: US Handgunner Bolt Knob Pics Check It Out
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: US Handgunner</div><div class="ubbcode-body">I'm working on refining my Remington 700 technique to allow it to blend a little better. But because of the nature of the geometry of the square handle and round knob its pretty difficult. I can get two sides to blend in perfectly, but the upper and lower half of the handle just wont match up.</div></div>
Mark, really nice blending job on the M70 bolt handle - I've always preferred a the M70 over the M700 and the M70's solid, one-piece bolt handle/knob is just one of those little reasons why. The extra girth of the M70's knob allows seamless blending, but the M700's bolt handle leaves much to be desired.
While blending the junction of the M700's handle and knob would be nice, it is more important to have greater clearance between the bolt knob and the stock so that the bolt can be completely closed without interference from the shooter's fingers as the bolt is closed (some folks have big mitts and/or wear gloves).
Without the bolt properly closed the lugs will not be fully seated, causing a possible misalignment of the cartridge. Cartridge alignment is critical for best accuracy.
Greater clearance also reduces the chance that the top of the shooter's trigger finger will not lift the bolt handle and unseat the lugs - again, causing a possible misalignment of the cartridge.
Not having to shorten the bolt handle to reduce the shank "to the correct dimensions" retains the original length and does not reduce the clearance between the bolt knob and the stock or between the shooter's forefinger and the bolt knob.
The Tac Ops Bolt Knob uses a large diameter hardened steel threaded insert that is TIG welded to the bolt handle. Prior to TIG welding the handle is inspected for voids and any that are found are filled. After TIG welding the bolt handle / shank junction is ground to a seamlessly smooth. The bolt handle's original round profile remains.
A competitor's bolt knob also uses a threaded steel insert that is welded to the bolt handle (I am told that this insert is hardened). Prior to welding the handle can be inspected for voids so that any that are found may be filled. After welding the bolt handle / shank junction is ground smooth and flat.
Below are a few photos' of a Tac Ops Bolt Knob installed on a RH SA M700 bolt and a competitor's bolt knob installed on a LH SA M700 bolt.
Compare the <span style="font-weight: bold">length of the handle and the diameter of the threaded shank</span> of the Tac Ops bolt to the length of the handle and the diameter of the threaded shank of the competitor's bolt:
<span style="font-weight: bold">Tac Ops bolt handle:</span>
<span style="font-weight: bold">Competitor's bolt handle:</span>
<span style="font-weight: bold">Competitor's Bolt (on left) and Tac Ops Bolt (on right):</span>
Now on the rifles. Getting the angle the same for both guns was tricky, so it may be difficult to see the actual clearance difference in in the photos. However, in person the clearance delta is substantial.
<span style="font-weight: bold">Look at the clearance between the bolt knob's "top" and the stock on this Tac Ops Bolt:</span>
<span style="font-weight: bold">Compared to the clearance between the bolt knob's "top" and the stock on the competitor's bolt:</span>
<span style="font-weight: bold">Also, look at the distance between the bolt knob's "bottom corner" and the grip on the Tac Ops rifle:</span>
<span style="font-weight: bold">Compared to the distance between the bolt knob's "bottom corner" and the grip on the competitor's rifle:</span>
I'm just sayin'...
Keith
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