208 AMAX and VV N110 Load Data?

[rv10flyer]

Does anyone have any 300 "Whisper" load data utilizing the 208 grain AMAX and VV N110 that they would be willing to share?

Thanks in advance.

[snipecatcher]

I use 8.5 grains in an 18" bolt gun. Load up 9.5 grains, chrono, and go from there.

[Spook]

I'm real close to 9.5 in a 16" bolt gun...

[glocker17]

I am at 8.9 gr in a 16" bolt gun.

[rv10flyer]

Thanks for the responses. What C.O.L. are you seating the projectiles to? The 208’s I measured are about .020 longer than the SMK 220’s. I’m more limited by the magazine than some of you running bolt guns. My plan was to load up a batch of 5 rounds each from 9.0 to 10.0 grains in .2 grain increments and with a C.O.L. of 2.260”. Based on your loads listed here I might go down to 8.6 just so I have them in case I get down to 9.0 and am still in the supersonic range. I have to drive a ways to the range so I want to have a good sampling to get close to my goal.


P.S. I am running a 10.5” 1x8 barrel on an AR-15 with a 762SD (not using can while testing loads).

[snipecatcher]

Just used my fancy new Mitutoyo micrometer for the first time and my OAL is about 2.335".

[coldbeerchief]

I couldn't get V N110 and 208 A-Maxs to work together - big groups.

I ended up with 8.0 gr of Lil Gun, 2.320" COAL that shoots consistently 1/3 - 1/2 MOA out of my 16" McGowen Savage

[lou400a]

8.4 gr of lil'gun @ 2.220 out of 16" ar w/shillen match. I'll do 1/2 moa if I do my part

[rv10flyer]

I wanted to update this post with a few data points I have collected so far. I am shooting an AR-15 with a 10.5” carbon barrel from Paladin, 1x8 twist, 3-way gas block, AAC 762-SD (not used during data collection below).

C.O.L = 2.245
208 A-Max
VV N110

Grains Avg Velocity StdDev
10 1283 4
9.8 1244 12
9.6 1220 12
9.4 1220 7
9.2 1186 7
9 1163 21
8.8 1137 28
8.6 1103 32
8.4 1078 8
8.2 1062 5
8.1 1030 15
8 1013 10

All of the above loads cycled perfectly and locked the bolt back after each 5 round bracket. During testing I had a target at about 10 yards for stability testing. I shot one five shot string at 50 yards and all five shots were touching. I'll test for acuracy further out next time but so far I am pleased.

Thanks for the suggestions.

http://img524.imageshack.us/img524/7254/300whisperwith762sdcrop.jpg

[i8asquirrel]

Great looking weapon , thanks for sharing info!