Hi all,

After my first and mostly successful foray into custom bolt actions with my 338 Lapua Improved build, it's time to start the next one. I have decided to build a 510 Whisper bolt action. I was wondering if anybody could help with some questions regarding parts selection for this build. So far, I have purchased the action, which is a Remington 700 footprint Long Action that supports 4.050" magazines.

• Will 510 Whisper cartridges fit in a 338 Lapua Magnum AICS magazine? For my 338 Lapua Improved build, Fritz at Black Canyon Customs machined out the shoulder guides of my MDT 3.850" AICS magazines and I am curious if I would have to have something similar done for these to fit, if at all.
  • Is there any point to using 4.050" magazines that have a max COAL of 3.970"? I see that the 750 AMAX load on SSK's load data has a COAL of 3.620" and a standard CIP AICS magazine allows 3.740". It's always nice to have some extra room to work with, but if it is going to make everything else a pain, I won't bother.
• Are there any chassis-style stocks (like the MDT ACC Elite or MPA BA etc) that accept 4.050" AICS magazines? I have not been able to find any.
  • If no chassis style stocks would work, what stock would you recommend? I would prefer to keep it at or less than $700 if at all possible.
• What length barrel would you recommend? I am happy to SBR the action and go with a short barrel. I was looking at the SSK load data and they are using an 18" barrel. I think this is a bit long for my needs, as I was planning on developing my loads with Vihtavuori N110 and it is a very fast burning powder.
• What twist rate would you recommend for a 510 Whisper? I see that Maker Bullets offers a 1000gr 50 BMG Subsonic REX and a 900gr 510 Whisper Subsonic REX that both have a recommended twist rate of 1 in 10.

Thank you in advance!

With all the vastly varying anecdotal reports of IQ between scopes, I think a blinded, randomized controlled trial of scopes would be very interesting. Because there’s some degree of objectivity and methodology in evaluating IQ, I think this could be very revealing.
Bias seems to be one of the greatest influences on individuals as far as I can tell. Whether conscious or subconscious, it can be hard to admit a $600 scope is optically close to a $4k scope.
Just like some people taste soap with cilantro or prefer different flavors than others, I believe vision is the same way. This may be obvious to some folks but it’s definitely not accepted main stream because people continue to argue to the point of insults (myself included ) over IQ of scopes. In contrast, most everyone is in agreement that scope features are subjective, so no need to try and examine that. The test could be standardized to be blinded. It would take some effort but certainly doable. A way to make diopter, magnification and parallax adjustments without fingering the scope. The trial would need to include a professional eye examination and history as well obviously.

hawkhill barrel in 223 wylde from blue mountain with about 500 rouds on it threaded 5/8x24 looks to be roughly an m24/mtu contour $450

SOLD impact 223 right hand bolt $400 SOLD

zelle, cash app, usps mo, cert check only

No expiration date, fill out the back and email it to proof. I will mail you the cert once payment is received.
$310 Zelle cash app or Apple Pay

Stainless 30 cal gen 3 micro bastard 9/16x24 that was bead blasted to match a Tikka that was never used. $100 $80 **SOLD**

Pair of good used Elander 17 round 6.5 Grendel mags with Magpul ranger plates.

$33 shipped for the pair

Paypal f/f or Venmo.

Thanks

Just had my .260 rebarreled in the 6.5 addiction and so far it's been an intriguing cartridge. I live out west so I was looking for a little more performance while trying to keep the cost down. So far this fits the bill!
I finally worked through fireforming a few hundred pieces of Lapua 6.5x55 brass so I loaded up a ladder with 140 rdf and RL26. The results were pretty wild. Started at a known load for this chamber with H4831 and went up 2 gr in .4 increments. Results (Lab radar) started at 3099 and got 3201 with the top charge! Had a heavy bolt lift but no ejector marks and when I punched primers they were still tight. 55 degrees out, defiance action and 26" Frozen Fiber (benchamark) barrel. I'll probably drop down in speed for better barrel and brass life but it was impressive to see those velocities! Hoping to get time this weekend to work on accuracy development!
I would imagine there are going to be a few guys playing with this cartridge. Hopefully we can get a good info sharing thread going for the Addiction as well as the 6.5 GWI/BJ-AI since they are similar.

Roll up target and case w lense. Had it on Mark 5 5-25 x 56

$115 - Shipped

My search skills are eluding me. A while ago there was along thread here with a members 3d printed brass catchers that stuck to the reciever with magnets. Can someone point me to that thread??

Thanks,

If it walks like a duck...

I don't think anyone is really surprised at this point.

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Used once. PayPal preferred $115 lower 48 only. Shmedium
Please give me a few days to ship.

AGM Global Vision Adder TS50-384. <1hr run time, and not on a rifle. $1750 $1500 shipped CONUS, Zelle or USPS Money Order only.

Trades/partial trades I'm interested in are certain Aimpoints; Surefire pistol lights; Volquartsen 4.5" Black Mamba or Scorpion; HK VP9 threaded barrel; PMM Comp for P365, P365XL, G19 Gen 4; ; Custom Glocks; Glock 17 MOS;

New in box Apex Rival X with the 10 mil turret and CLR reticle. Great scope for a great price.
$2000 plus shipping.

All items include shipping CONUS. What you see is what you're getting. I only accept Zelle or cash, so please do not ask if I'll take any other form of payment. Trades/partial trades I'm interested in are certain Aimpoints; Surefire pistol lights; Volquartsen 4.5" Black Mamba or Scorpion; HK VP9 threaded barrel; PMM Comp for P365, P365XL, G19 Gen 4; Custom Glocks; Glock 17 MOS.

XLR Industries Element 4.0 Magnesium Chassis - SOLD
JAE 700 G4; 700SA, RH. Used in a couple matches. - $1050

MDT Dampers SRS-X Green - $50
Seekins ProComp 10X stock, Black - $90
MDT takeoff pistol grip carbon - $100

(see other listing for mounts & rings)

American Precision Arms Gen 3 Little Bastard - 5/8x24 - 6.5mm - SOLD
Heller Arms Muzzle Brake - 5/8x24 - 6.5mm - $50
PWS 5.56 Flash Hider - $20
Elite Iron 5.56 OP COMP Brake - $85
CMT 5.56 Combat Recoil Compensator - $50
Elite Iron CQC Brake and Cover Cap - $125

Mcmillan 7" Rail w QD mount - $25

MDT MLOK weights - SOLD

Tier 1 Concealed Axis Elite for Sig P365 - $100

Used as a demo Apex summit pro 12x with tr2 reticle. $750

This is a really cool kit...Vortex Razor HD Gen II-E 1-6x24 EBR-7F MOA SFP Riflescope w/ Reptilia Mount & Armageddon Bag RZR-16099
These are super limited and once they are gone, they're gone. Currently in transit to us Due 3/28

**UPDATE** 4/3
There was misinformation about this unique optic. It is NOT a reptilia mount. The mount is a specifically designed Vortex mount.




Order yours below, or PM me:

I have 2 10rd MDT AICS 6BR/6 dasher for sale

Used for 200 rds each

They work great I just use my gray ops more.

$140 shipped.

PayPal G&S I'll cover the fees. No Notes!

Will trade for 1 gray ops 12 6 Dasher mag

Like new Vortex Viper Gen 1 MOA milling reticle scope with rings.

$SOLD Shipped

PayPal Accepted

$295

200 rounds on it. Perfect shape

Selling as heavy fill game changer $100 shipped, no defects no tears or holes.

Selling my 16 inch 5.56 sugar weasel. Not exactly sure on round count but rifle shows minimal wear. Rifle shoots and functions great, just going a different direction. Will include (1) pmag. Make sure your FFL will accept from an individual. Optic, mount, tripod, and bipod not included. ***SOLD***
Trades:
-lrp s3
-T6xi 5-30
-long action foundation stocks

What do you guys use for flea and tick control on your dog? Have used seresto for years, but supposedly has some side effects, neuro I think. Anybody done any research into something both safe and effective, you know, like a covid shot lol.

Athlon Ares ETR 3-18 APRS6 mil
Athlon USA made rings
Listing this and my SE 5-25, will keep whichever doesn’t sell.

$650 with rings tyd
$575 scope

I have some NIB PH3 available. 20” 6.5PRC and 20” 6mm creedmoor. Also have the 24” 6mm creedmoor inbound. $1800

Located in Cheyenne. Can meet up to the Loveland, CO area for powder/primers.

Powder
Varget 4 - 1# and 1 - 10ish oz $50/lb $220 for all of it
H4350 4 - 1# $50/lb
H1000 4 - 1# $50/lb
Retumbo - 1/2# $20
Hybrid 100V 2 - 1# $40/lb
Staball Match 1 - 1# $50/lb
Ramshot Hunter 3 - 1# $30/lb
Norma MRP 1 - 1# $40/lb
RL19 2 - 1# $60/lb
RL17 1 - 5# $260
RL25 1 - 1# $60/lb
RL10x 1 - 1/2# $25
H4895 8lb jug weighs 6 lbs $250
CFE BLK 1 - 1# and 1 - 14ish oz $80 for all of it
CFE 223 1 - 1# $40/lb
H110 1 - 1# $40/lb
Accurate #9 - 1# $40

Primers
GM210M 2500 - $260
CCI 41 2500 - $250
CCI 450 2900 - $250
Winchester LRP 300 - $15
Winchester WLR 400 - $25

Bullets
.264 143 eldx 300 - $120
.284 139 LRX 50 - $40
.284 145 LRX 50 - $40
.308 165 Trophy Bonded Tip -
.308 175 LRX 100 - $80
.308 130 TTSX 200 - $140
.308 150 TTSX 200 - $35
.308 165 accubond pulled 320 - $150 SPF