Shot some 2010 & 2011 3.5" Hevi 7's today (w/ Pictures)

[drum817]

Thanks to Joshua who sent me two Hevi 7's from the 300488 lot.  I shot the 2010 load against the 2011 load out of my Supernova with a IC .665.  I didn't break the 300 mark with last years shell like I had hoped.  The weather was a touch cooler and I had a small cross wind....although I don't believe that the cross wind was strong enough to make a huge difference.  After recovering each wad from each individual shot I did notice right away that the wad is totally different (not a shocker).  The 2011(lot 300488) still put up 240 in the 10"....which I can get those numbers out of Xtended 6's in my 835.  HOWEVER, I only managed to get 257 out of lot 300325 which was doing 300+ for me last year....go figure ....I have one more shell from the 300488 lot to dissect...so we'll see what that reveals later.

[gatrkyhntr70]

good report, nothing to fuss over there.

[drum817]

good report, nothing to fuss over there.

The ONLY thing that puzzled me was...Last year I never shot under 300 with lot 300325 and this year from the same box it shot 257.  I checked the temps and humidity from last year and here is the only difference.

Last year.... 70 degrees and 30% humidity

This year....  59 degrees and 53% humidity

[ILIKEHEVI-13]

The 11 degree temp difference had a lot to do with that. 

[SumToy]

I see the was is diffrent in the two shells.  I think I saw some say that HV-13 told them they had not changed the shell.

[R AJ]

good report, nothing to fuss over there.

The ONLY thing that puzzled me was...Last year I never shot under 300 with lot 300325 and this year from the same box it shot 257.  I checked the temps and humidity from last year and here is the only difference.

Last year.... 70 degrees and 30% humidity

This year....  59 degrees and 53% humidity

Drum ,
What good patterns you hav ethere. Nice, very nice.

[drum817]

Tough to read the lot# in the hull and wad pix, but the wad in the lower pic sure did hold up better than the one in the upper pic. As a handloader, there is no way I would use the wad from the upper pic without a mylar wrap to prevent those pellets from scrubbing through. That wad is not up to the task.

The top pic is lot # 300488 from 2011

The bottom pic is lot # 300325 from 2010

I know without putting a mic on it you can't "really" know....but the wad from #300325 (bottom pic)  does feel thicker to the touch.

[SumToy]

You looking over part of  wad you want to look at.  It not how thick it is .   Look at the OD of both.  Look at the gas seal on both.

[drum817]

Sumtoy....I've got a pic on the way.

[gatrkyhntr70]

good report, nothing to fuss over there.

The ONLY thing that puzzled me was...Last year I never shot under 300 with lot 300325 and this year from the same box it shot 257.  I checked the temps and humidity from last year and here is the only difference.

Last year.... 70 degrees and 30% humidity

This year....  59 degrees and 53% humidity

My guess would be the humidity had a larger past in it, from my patterning its always seemed to be more of a negative effect.

[gatrkyhntr70]

Tough to read the lot# in the hull and wad pix, but the wad in the lower pic sure did hold up better than the one in the upper pic. As a handloader, there is no way I would use the wad from the upper pic without a mylar wrap to prevent those pellets from scrubbing through. That wad is not up to the task.

The top pic is lot # 300488 from 2011

The bottom pic is lot # 300325 from 2010

I know without putting a mic on it you can't "really" know....but the wad from #300325 (bottom pic)  does feel thicker to the touch.

I agree Im looking at 2 wads from each of these lot #'s.

[drum817]

Sumtoy....here ya go...the wad on the left is the #300325(2010)

[SumToy]

Looks like we will need to rework the choke for this.  Now with that said we have had good numbers with the new shell.  Now with that said I did see low numbers this year when we started to test.  I looked at the temp as the problem.  I did not have a old wad and had not played with them enuff to remember what the old wad looked like.  So I started over with the chokes.   

Now the softer wad will rip more as we get more into the warmer days. 

[joshua]

Good deal Drum.  When I shoot the 7s the wad is ripped around the edges something fierce.  I would think the choke is causing it but who knows.  The wad you have from last years lot looks just like the wads I have from the 6s I've been shooting both new and old.  

[cannonball]

Good information, thanks for working on this.