Speer Impact Bullets

[Formidilosus]

My error, I was referring to T-Stick's post rather than the OP. My discussion remains otherwise unchanged.

I don’t know what your point or “discussion” is. You seem to want to argue semantics rather than cut straight to the issue.

This is what I initially wrote to T-Stick who thinks that because his groups are hovering around +/- 1 MOA at 100 and 300 yards- well within expected variability of 3 shot group sizes; that the bullets are unstable, imbalanced, or inconsistent due to bonding.

This is your problem. All you are seeing is the reality of insufficient shot group sizes. 3 shot groups is not real data. Your 10 plus shot groups at 100 yards will be your 10 plus shot groups at 300 yards (excepting wind).

There is nothing in there that is incorrect- 3 shot groups are not real data. That means useful to determine what he is trying to determine. In context, 3 shot groups are insufficient shot group sizes- As stated.

 

[Dobermann]

@Formidilosus - some days, you have the patience of a saint.

@T-Stick - welcome. We hope you hang around. A while back, some old timers here used to recommend reading for 6 months before posting. For this issue, could be worth reading what you can about cone of fire and statistical significance. Here's a starting point: Some cone of fire posts.

And don't be offended if you say things you genuinely believe to be the case, but some people offer evidence as to why they're not ... it's happened to all of us, and is what makes Rokslide the great place it is.

 

[Q_Sertorius]

If you are happy with those groups that is all that matters. I would not be happy with those outliers.
You keep avoiding what I really said in order to promote your original strawman assumption. I use multiple 3 shoot groups to establish accuracy benchmarks in a sporter hunting rifle. Or sometimes I will slow fire another 2 after the barrel cools. I also mentioned the importance of establishing consistent 1st round hits. I also was saying all this in hunting context, not benchrest context. The Speer Impact are hunting bullets.

The groups you posted would not inspire me to change my methodology. I would still be trying to tune those loads for better accuracy.

Please post some 10-shot groups with which you are satisfied, even some aggregate ones.

 

[AZ_Hunter]

Watch these.

 

[S-3 ranch]

I keep returning to this thread to check if there is any information on the Speer impact as a general bonded hunting bullet and how well did they preform and penetration results, but I have yet to see any post on this. Since very few manufacturers are offering a bonded hunting bullet, but it’s turned into a T T measurement contest, smhh ;(

 

[TheViking]

I keep returning to this thread to check if there is any information on the Speer impact as a general bonded hunting bullet and how well did they preform and penetration results, but I have yet to see any post on this. Since very few manufacturers are offering a bonded hunting bullet, but it’s turned into a T T measurement contest, smhh ;(

I have used the Federal Fusion Tipped with excellent results, It's basically an identical bullet - some even say Speer makes these for Federal. I don't know any truth to that.

Bullets hold together very well, expand like crazy, shed 10%-20% of weight and still get pass throughs in most occassions.

 

[TheViking]

I keep returning to this thread to check if there is any information on the Speer impact as a general bonded hunting bullet and how well did they preform and penetration results, but I have yet to see any post on this. Since very few manufacturers are offering a bonded hunting bullet, but it’s turned into a T T measurement contest, smhh ;(

This guy is a goofball but his videos show good data.

This is the version I used - 7mm 175 grains