155gr SMK
- Thread starter Underthegun
- Start date
paperslayer
Regular
- Location
- Chilliwack
yes, but there is still a sweet spot. 20 thou seemed to always work best for me.
Jump tolerant should really read "Seating depth tolerant" = not particularly picky about where they work best in relation to distance-to-lands. VLD bullets *typically* must be jammed into the rifling to work best. secant ogive bullets are not as picky.
Jump tolerant should really read "Seating depth tolerant" = not particularly picky about where they work best in relation to distance-to-lands. VLD bullets *typically* must be jammed into the rifling to work best. secant ogive bullets are not as picky.
There's two different 155 grain Matchkings. The new ones have a higher BC and I can't get them within 1/2 mile of the lands. The old ones had a different profile and I can reach the lands.
Conclusion? There isn't one really, except that if you are useing the new one it better like jumping.
Conclusion? There isn't one really, except that if you are useing the new one it better like jumping.
rnbra-shooter
CGN Ultra frequent flyer
- Location
- New Brunswick
The older one is part number 2155. It was the very first "155 Palma" bullet, it was made for the 1992 Palma Match. It is relatively jump-tolerant.
Every bullet manufacturer who produced a 155 after that, had to somehow be "better" than the Sierra 155. Most of the 155s have a higher b.c. than the Sierra #2155.
A few years ago Sierra updated their 155 and introduced a new one. The "new 155" is Sierra part number 2156. I have not used these a great deal, but many, many (perhaps even most?) U.S. shooters use them, to very good effect. I *think* that the #2156 is a bit less jump-tolerant the the older #2155, though I don't think it's a terribly fussy bullet.
Some 155s I have used that are not jump-tolerant (BTW these are extremely high-quality bullets; not being jump-tolerant does *not* mean that they are a "bad" bullet at all, it's just a characteristic you need to keep in mind when selecting a bullet):
- Berger 155 VLD
- Lapua 155 Scenar
Some other 155s I have used that are jump tolerant:
- Berger 155.5 Fullbore
- Berger 155 Hybrid (in my limited, single-outing testing of them)
Every bullet manufacturer who produced a 155 after that, had to somehow be "better" than the Sierra 155. Most of the 155s have a higher b.c. than the Sierra #2155.
A few years ago Sierra updated their 155 and introduced a new one. The "new 155" is Sierra part number 2156. I have not used these a great deal, but many, many (perhaps even most?) U.S. shooters use them, to very good effect. I *think* that the #2156 is a bit less jump-tolerant the the older #2155, though I don't think it's a terribly fussy bullet.
Some 155s I have used that are not jump-tolerant (BTW these are extremely high-quality bullets; not being jump-tolerant does *not* mean that they are a "bad" bullet at all, it's just a characteristic you need to keep in mind when selecting a bullet):
- Berger 155 VLD
- Lapua 155 Scenar
Some other 155s I have used that are jump tolerant:
- Berger 155.5 Fullbore
- Berger 155 Hybrid (in my limited, single-outing testing of them)
rnbra-shooter
CGN Ultra frequent flyer
- Location
- New Brunswick
Probably not. To to be sure, have a look at the part number on the box, then go to http://www.bergerbullets.com/Products/All%20Bullets.html.
My guess, because of the orange box, is that it is a hunting bullet, likely #30508 "155 gr Match Grade VLD Hunting". This is similar to, and perhaps even identical to, #30408 "155 gr Match VLD Target" - if you want to know for sure, ask Berger, I'm sure they'd be happy to tell you.
The Berger VLDs tend to be quite picky w.r.t. the amount of jump, i.e. they are *not* jump-tolerant. They are very high quality bullet, and if you've found a good load for them they will shoot as accurate as the very best bullets out there (because, it is one of the very best bullets out there).
