BC of wolf 100 grain bullets

[dammitman]

Does anyone know what it is?

[dammitman]

Anybody even a guess?

[LRRPF52]

Somewhere in the mid .3's at best. Can you pull one and take a picture of it next to a Nosler 100gr Ballistic Tip?

[stanc]

Nosler 100gr BT @ 0.350

Barnes 100gr TTSX @ 0.357

Berger 100gr BTHP @ 0.370





I'd guess 0.360 for the Wolf 100gr FMJ.

[BluntForceTrauma]

Photos of Wolf 100 FMJ attached. Barnaul's website had first claimed a 0.400 BC.

[stanc]

Nice pics, John. Did you take them?

The Wolf FMJ looks very much like the 100gr Berger.

[VASCAR2]

I thought it would be interesting to pull five of the Wolf 100 grain FMJ bullets from the steel cases and replace them with five 100 grain A-Max bullets. I then would load the bimetal 100 grain full metal jacket into brass cases and shoot both for groups. I thought about just using the existing powder in the steel cases with the A-Max. I'd probably use H-335 or A-2230 with the wolf 100 grain FMJ in brass PPU cases with S&B large rifle primers.

[BluntForceTrauma]

Stan, pics are from Bill A., when stuff first came out. Bullet really is a pretty darn nice tangent ogive, for what it is.

At the time, Bill told the Russians to get as close as they could to a 6.5mm 107 SMK form factor.

[stanc]

Thanks, John. I agree, it looks pretty good for a tangent ogive FMJ.

The 107gr SMK has a listed BC of 0.406 at Grendel velocities, so it appears to me that Barnaul's 0.400 was a bit optimistic.

[LRRPF52]

Thanks, John. I agree, it looks pretty good for a tangent ogive FMJ.

The 107gr SMK has a listed BC of 0.406 at Grendel velocities, so it appears to me that Barnaul's 0.400 was a bit optimistic.

Bryan Litz's analysis of the 107gr SMK found it to be .461 G1, .230 G7, which means Sierra underestimated it by almost 9%.

I'm going to have another look at that bullet in the Grendel since I can get more speed with it.

[stanc]

Photos of Wolf 100 FMJ attached. Barnaul's website had first claimed a 0.400 BC.

Wow! They now claim an incredible 0.515 BC. http://eng.barnaulpatron.ru/producti...alibre/65.html

[dammitman]

I thought it would be interesting to pull five of the Wolf 100 grain FMJ bullets from the steel cases and replace them with five 100 grain A-Max bullets. I then would load the bimetal 100 grain full metal jacket into brass cases and shoot both for groups. I thought about just using the existing powder in the steel cases with the A-Max. I'd probably use H-335 or A-2230 with the wolf 100 grain FMJ in brass PPU cases with S&B large rifle primers.

now that would be a interesting test. did you do it? if you pull the bullet would you necessarily need to resize the neck? i want to do this. so in the end though we can figure the BC of the factory wolf bullet is somewhere between 350 and 515? i am trying to plug info into Strelok

[VASCAR2]

I hadn't pulled any of the steel case bullets and I'm not sure if these have a neck sealant. I actually thought about using some of the 107 grain SMK in the steel cases just for an accuracy comparison. The Wolf Steel cased ammo shoots about 2.5-3 MOA in my 16" Shaw barrel.

I was just curious if the poor accuracy was mostly the bimetal bullet, so replacing the bullet might improve the accuracy of the steel cased ammo. I also considered using the Nosler 100 grain Ballistic Tip. I'm kind of curious if there is much difference in the volume of the steel cases compared to brass.

[dammitman]

lets find out, gonna find my bullet puller

[VASCAR2]

If you end up pulling some of the 100 grain Bimetal FMJ's I'd measure each powder charge. The few Wolf steel cased I shot I never chronographed so I really don't know how consistent their powder weight will be.