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Old 10-15-2018, 11:20 AM
lclund1946 lclund1946 is offline
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Join Date: Apr 2010
Location: Rimbey, AB
Posts: 671
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Quote:
Originally Posted by thundergrey View Post
I know my rifle can be accurate. The Sierra 100gr HP are lasers and stack all day long with IMR4350. Just haven’t found a hunting bullet that I can get to even MOA accuracy.

Hoping Varget is my answer.
I think what is most confusing for people trying to load for the 7mm-08 is the vast difference in the way bullets seat when seated to magazine length, especially the 2.8" COAL of the Remington SA. There can be a huge difference in "Jump to the Lands", and powder capacity under the bullet even with different 140 grain bullets. When I started loading for the 7mmo8 Nosler were still making the 120/140 Solid base bullets(see my loads for 700 V) and H 4350 Extreme was not yet on the market. My go to powder was IMR 4064 which pushed the 140 to near 3000 fps although the load was a bit on the hot side but it shot 0.19" groups. Nosler replaced the SB bullet with the BT and I could no longer run IMR 4064 or the new H 4350E as it protruded way down in the case leaving too little case capacity. I then went to the Speer 145 SPBT which fit to the lands, with bearing surface in the neck, much like the Nosler SB and the Sierra 140 Game King leaving enough space for the H 4350E especially in neck sized brass.

When Varget came out I realized that it would be a perfect fit for the 110 Speer TNT, 120 BT and the 140 BT as well. The 110 TNT load was used in my 700V for fireforming Remington brass, was capable of Sub 1/2 MOA to 600 yards, and really did a number on gophers. The 120/140 BT/AB loads shown for the 700 SPS shot 1/4 MOA to nearly the same POI and tracked the same to 500 yards

These drawings should help explain what I mean. I do have Freebore confused with "Jump to the lands" as these drawings were made before I knew the difference. The first one is the 145 Speer seated just off the lands.:
[IMG][/IMG]

Nosler 140 AB, which is virtually the same as the BT seated 0.166" off the lands. Not a good fit for H 4350 but works great with Varget.
[IMG][/IMG]
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