Thread: Operation Grendel Tactical Featherweight

Originally Posted by Wingman

Fixed 10x Tac Vector Optics marksman.
Mil mil.. stunning clear German Schott glass and very usable reticle.

Don't you find the fixed 10 power a bit.... Limiting? Good for tops but not for close range acquisition.

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No not at all, the property this rifle is used on most is open and rolling with animals on bush lines, the closest shots are about 160y all the way out to about 420y.
The fixed 10x suits the "do all" nature of the 6.5 Grendel nicely. I have other rifles for close range bush bashing.

Here
https://www.amazon.com/TAC-Vector-Op.../dp/B00MTMDQEE

Originally Posted by Wingman

No not at all, the property this rifle is used on most is open and rolling with animals on bush lines, the closest shots are about 160y all the way out to about 420y.
The fixed 10x suits the "do all" nature of the 6.5 Grendel nicely. I have other rifles for close range bush bashing.

That's good. The public land I do my deer scaring on is all thick so a fixed 4 or low mag would be good for me.

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I buy mine directly from Tac Vector optics in China. They are an American company and design using quality components and glass but assembled in China like 99% of other american brands these days. If you buy them factory direct you dont need all the export permit guff and wont get middle man inflated prices. I personally love these scopes and cant say enough about their value for money.. the optics leave many of the big expensive brands for dead and the track perfectly. The fixed 10x44 is my personal favourite as it is a low bulk no nonsense basic scope with great clear glass, followed closely by the 4.5-18x50. The 10x44 can be landed for about $240nzd from AliExpress.
TVO all have quite long eye relief so something to be mindful of when mounting. I own 9 TVO scopes and have had no issues to date with any of them. Ive sold high end scopes and put these in their place on several occasions. Check out the Marksman range if you are in the market for a no bullshit low cost scope with high end features.

They make several 4x and 1-6x or 1-8x AR15 scopes too But stick to the SFP range.
Stay away from the cheaper end FFP scopes as they are very fish eyed at high mag and very eye position sensitive.
They are fine on low mag but a lot of parallax error in the higher mags.


The fixed 10x44 will get me to 1000y with 123gr Lapua OTM at 2450fps on the reticle but make easy work at 100y too.

At that price it's worth a punt.

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Thats a orsome wee build , I have just chronied my 65G , its got a longer barrel , 20 inches , 95gr vmax at 2601 fps , 29.0gr XBR 8208 .

I finally got a bit of time to myself to test some loads Ive had made up for the Grendel for a while now.

The 123gr Lapua Scenar open tip match bullets @ 2450fps have been my "go to" with a load I worked up a while back, 28.2gr of ADI BM 8208 in lapua brass with CCI BR-4 primers and they printed a perfect 1/4 MOA group at 100 yards for me today. The Lapua Scenars also have the highest BC of the all 123gr bullet range.

The 107gr Sierra TMK and 123gr Hornady Amax did well at 1/2 MOA. both would probably do better messing with seating depths and fine tuning charges.

Would love to see this rifle shooting the Scenars at 400-500m @Wingman. I’ve been reading about some outstanding Grendel accuracy on one of the yankee forums, with the very same bullet. Some real eye opening groups.

Originally Posted by Flyblown

Would love to see this rifle shooting the Scenars at 400-500m @Wingman. I’ve been reading about some outstanding Grendel accuracy on one of the yankee forums, with the very same bullet. Some real eye opening groups.

I have yet to shoot them past 250 yds so maybe next time we get out Ill bring it along

@Wingman has this got the compound throat or the standard 1.5 deg type? I see the bullets are loaded fairly well out of the case which make me think its the GII chambering.

Originally Posted by Mathias

@Wingman has this got the compound throat or the standard 1.5 deg type? I see the bullets are loaded fairly well out of the case which make me think its the GII chambering.

Im not to sure as I didnt chamber this one, pretty sure it was a custom odered reamer with a shorter throat to suit the CZ 527s mag length and 123gr A-Max's. Loaded to max mag length of 2.320" (COAL) gives the A-Max and Scenars a 10-15 thou jump

Originally Posted by Wingman

I have yet to shoot them past 250 yds so maybe next time we get out Ill bring it along

In my TCU the Scenar's are much more consistently accurate past 500m that the ELD-M's of the same weight (123gn). For whatever reason the Eld-M's seem to fall "off the wagon " past 700m maybe velocity related as they don't have much to start with

Originally Posted by mikee

In my TCU the Scenar's are much more consistently accurate past 500m that the ELD-M's of the same weight (123gn). For whatever reason the Eld-M's seem to fall "off the wagon " past 700m maybe velocity related as they don't have much to start with

You are right.. personally I am not a fan of Hornadys offerings other than the V-max for varmints.
They get overly carried away trying to get high BC figures with aggressive secant and hybrid ogives which need high velocities and long seating depths which many factory mag fed rifles are not well suited to.
All well and good at shorter ranges but the bullet design being lighter and longer in the front doesnt do as well at longer ranges as it slows down.
A good test when deciding on a bullet is to load some at 1200 to 1300fps and try shoot a group at 100y.. you will find the Lapua with its tangent ogive and more centered center of gravity will always group best.
I did these tests with my 6.5 Creedmore and a range of bullets.. the 143gr ELDX which shoots under 1/2 moa at 2900 mv in my rifle was unstable even with the 1-8" twist at 1200fps entering the paper sideways at 100y.
The Lapua 139gr scenar and 130ge Sierra TMK shot as well as they do at 2900fps and the 136gr Lapua with its hybrid ogive also showed unstable keyholes and wild groups.
In working terms, eg when used for long range hunting, a bullet that is stable at the transition to sub velocities is always going to fly straighter in the higher (usable hunting) velocities too.
Id put money on the ones that hit the paper sideways will have a wobble even before dropping to subsonic velocities.


Give me a traditional tangent any day over the recent "fad" of low drag hunting/match bullets.

How do you know on the Aliexpress site if its SFP or not ? I cant see it stated. I have a 6.5 grendel AR, looking to shoot 300 - 1000yrds