Minimum lading vir N550 in .270 Win

Post Reply
User avatar
Jo Toast
Full Member
Full Member
Posts: 202
Joined: Fri Feb 16, 2018 9:09 pm

Minimum lading vir N550 in .270 Win

Post by Jo Toast »

Hallo almal

Weet enige iemand op watter min lading ek kan begin ladingontwikkeling doen vir die volgende kombinasie:
.270 Win met 22" loop
Vihtavuori N550
Nosler 130gr Ballistic Tip

Volgens GRT lê daar 'n node tussen 49.2gr en 49.5gr vir 'n MV van rondom 2900 fps.

Ek het gedink om by 45gr te begin en op te werk in 0.3gr inkrimente. Hoe klink dit?
BSA .270 Win
Tikka T3 Varmint .308 Win
Bergara B14R .22lr
Glock 19
User avatar
Philip J
Hero Member
Hero Member
Posts: 925
Joined: Fri Mar 14, 2014 8:58 pm

Re: Minimum lading vir N550 in .270 Win

Post by Philip J »

.
Last edited by Philip J on Wed Aug 07, 2024 5:58 am, edited 1 time in total.
Groetnis
Philip
User avatar
tripodmvr
Administrator
Administrator
Posts: 21608
Joined: Fri Mar 11, 2011 8:31 pm

Re: Minimum lading vir N550 in .270 Win

Post by tripodmvr »

Beginlading van 50gr behoort so 2750-80vps te gee. Node 5 is in die orde van 2920-50vps.
.22 Krico, Howa 223 Varminter, 243 AI Musgrave RSA, Ruger RPR 243, P14 - 7 x 64, BSA 303 Sporter, 375 H&H Musgrave, 30-06 Ruger No. 1A, Khan O/U 12br, Norinco O/U 12br
User avatar
Jo Toast
Full Member
Full Member
Posts: 202
Joined: Fri Feb 16, 2018 9:09 pm

Re: Minimum lading vir N550 in .270 Win

Post by Jo Toast »

My 270 het nog oor al die jare minder kruit gebruik as ander vir dieselfde spoed. Hy het seker maar 'n redelike "tight" loop. So ek was maar nog altyd baie versigtig vir druk in daai geweer.

Hier is 'n paar voorbeelde van ander ladings wat ek in hom gemeet het:

130gr Gameking met 51.6gr S365 = 2883fps
145gr ELD-X met 53,3gr N560 = 2728 fps
145gr ELD-X met 48gr N550 = 2796 fps
BSA .270 Win
Tikka T3 Varmint .308 Win
Bergara B14R .22lr
Glock 19
Post Reply