Here is some data sent by Berger that was generated via Quick Load for 24" barrel:
6.5x55mm Swedish Mauser
Bullet Powder Start Load Approximate Start Velocity Max Load Approximate Max Velocity Fill Ratio
140 Grain H4831 SC 44.0 2494 47.1 2700 95.2%
140 Grain IMR 4350 38.5 2575 41.1 2675 86.7%
140 Grain NORMA MRP 44.0 2563 47.2 2775 >> 95.4%
140 Grain Ramshot Magnum 47.5 2543 50.8 2755 >> 99.1%
140 Grain VIHT N160 41.5 2429 44.6 2621 93.2%
140 Grain WW WXR 43.5 2531 46.6 2733 94.7%
140 Grain RE 22 43.5 2544 46.4 2736 >> 95.8%
140 Grain AA XMR 3100 42.5 2504 46.1 2661 96.3%
140 Grain NORMA 204 40.5 2489 43.2 2665 88.3%
140 Grain VIHT N165 44.0 2499 46.8 2657 96.5%
140 Grain IMR 4895 35.0 2522 37.2 2644 << 78.4%
140 Grain IMR 4064 35.0 2475 37.1 2593 << 78.1%
140 Grain RE 19 40.5 2408 45.0 2669 92.7%
140 Grain H4350 41.5 2503 43.5 2620 88.7%
Thanks Marlin for the chart (list)
I have an observation for 6.5 X 55 loaders.
This chart was supplied by Berger it IS NOT mine.
I noted the higher vels with >>
I noted the lower vels with <<
As I told Big Redhead, some months ago I had a thread about "favorite (best) powder for the Swede". Rl 22 was the favorite.
In that thread and here some recommend 4895, 4064 etc. They are faster burning powders and give LESS vel.
Even in a limited or smaller capacity case SLOWER BURNING powders yield HIGHER vel.
Just an observation trying to help.
