105Amax/75vamx

[Franklin2890]

Looking for advice I normally shoot 105 amax seated at 1.763 with 10 tho jump to the lands which shoot great but wanted to try a lighter bullet so opted for the 75gr vmax so I got them measure to the lands which was 1.608 to ogive (doubled checked) so my is question am I over thinking that this is far to short? As they look like there sat way to far back in the case?

Also I should add I got some 70gr blitz kings measure at 1.740 (but these would not shoot)

 

[Phil]

Just try them and see if your rifle likes them jumping, there is always the 87r. Amax that you could try too.....



Phil.

 

[jbell]

If you are looking for a short range load using the lighter bullets give the Barnes Match Burner 68g a look. I have a GA Precision built 6mmBR for my little girls to shoot and one is a bit recoil sensitive so I needed a light weight bullet for her to shoot. I found these and decided to give them a try. I loaded 30g of Benchmark in Norma brass over a CCI BR2 with the Barnes bullet and it shoots under 1/2 MOA. This is the first load I tried so it will be perfect for my kids to shoot. But I have been surprised at the accuracy and consistency of these inexpensive bullets.

 

[Mozella]

Seems like quite a bit of variance to me. I just checked my .223 REM seating depth chart and noted that the difference in my CBTO measurements between Hornady 52gr BTHP and Hornady 75gr BTHP is .086" measured when touching the lands. Your data shows a variance of .165" and that seems like a lot to me.

Of course, each bullet is different, but I'm suspicious when you say "double checked". For example, my .223 rifle is very difficult to check. Depending on the type of bullet, I often have to record more than 25 measurements using the Hornady OAL Gauge. It's a real struggle to get enough of the measurements to match each other so that I have confidence that I've got the measurement right. Pushing the end of the rod with just the right force becomes an art rather than a science.

Furthermore, the measurements usually differ by a disappointing amount sometime showing significant swings in measured length and making the entire process vague enough to be frustrating. Even when I find a well behaved bullet, I take no less than 10 measurements in an attempt to confirm the true reading.

My new 6mm BR rifle is much easier to measure and I did a series of 6 different bullets yesterday without spending too much time. Still, I made many repeat measurements and didn't stop until I got a series of three or four identical numbers to record on my seating depth chart.

I'm not the only one who reports slightly vague results when trying to zero in on exactly where a bullet contacts the lands. I would recommend checking your measurements again and do a lot of measuring until you get three or four consecutive results which vary less than .001 from each other.