good afternoon ,if possible could some one run my current load through quick load ? 6.5x55 20" 1 in 8 twist, case length is 2.160 ,fed 210 primer, nosler 120grain b/t, powder is h4895 at 39grs and overall length of 2.916". useable case capacity is 50grs of water <this is with the bullet seated to case shoulder, its a boat tail bullet and is seated to the straight shank to the base of the shoulder so b/t is into the case> i hope thats all the information required. many thanks
quick load
- Thread starter ashray
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NorthernTikka
Well-Known Member
Can do, if you PM me can send info across
What are you trying to find out when you say "run my current data"?
You're over book max by a grain and a half, is that the issue?~Muir
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palmer_mike
Well-Known Member
Also, if the OP is hoping to get accurate pressure measurements from QL he shouldn’t rely on them. QL pressure measurements are seldom spot on.......
P-Max internal ballistics would also conclude that the load is somewhat "heroic".
However, with the bullet pushed well back into the case and the very long throat on the 6.5 x 55, it may well be that the load is not nearly so hot as it would be in, say, the 6.5 Creedmoor which would have a very similar usable case capacity to that quoted.
However, with the bullet pushed well back into the case and the very long throat on the 6.5 x 55, it may well be that the load is not nearly so hot as it would be in, say, the 6.5 Creedmoor which would have a very similar usable case capacity to that quoted.
The case capacity to overflowing would be about 57 grains H2O for the 6.5 x 55.
The OP gave the *usable* case capacity, which is the case capacity behind the loaded bullet. In his case, the bullet is pushed a long way back into the case, so the *usable* case capacity is significantly lower than it would be if loaded with the back of the bullet level with the shoulder-neck junction.
Case volume of 6.5x55 is around 57grns, but the OP quotes usable volume. However, your load is a bit warm, +-53670 psi - CIP max is 55114!!, fps is 2757 and 2025 ft.lbs, 99.6% burn, BE26.8%. Go to COL of 3.044 and 37.8grn of powder and you are about at recommended max load. BUT your load, your rifle etc.
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Maybe try H4350 -if you can find it!- or N150, they seem to be better matches and better fill ratio's. You'll probably find an accuracy node around 2660fps. COL can be lengthened to 3.044 as that gives you 6.5mm of the shank in the neck, so you can play with seating depths which may improve accuracy.
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