Which burns faster, N540 or URP?

N540 is the faster-burning of the two (rank #62 vs #63 — lower rank burns faster).

What cartridges do N540 and URP both load?

Both powders are listed for .243 Winchester, .30-06 Springfield, .300 WSM, .308 Winchester, .338 Winchester Magnum, 6.5 Creedmoor, among 17 shared cartridges.

Powder head-to-head

N540 vs URP

Both powders on one page: burn-rate position, temperature sensitivity and the 17 cartridges they share.

Compare another pair Burn-rate chart

Burn-rate position

FastestSlowest

N540 #62 · URP #63

Side by side

	N540	URP
Manufacturer	Vihtavuori	Norma
Burn-rate rank	#62	#63
Burn category	Medium-Slow	Medium-Slow
Grain shape	Extruded	Extruded
Temperature sensitivity	Low	—
Applications	Rifle	Rifle
Suppressor-friendly	Yes	No
US availability	Moderate	Limited
Status	Active	Active

Shared cartridges

.243 Winchester
.30-06 Springfield
.300 WSM
.308 Winchester
.338 Winchester Magnum
6.5 Creedmoor
6.5x55mm Swedish
6XC
7.5x55mm Swiss
7mm-08 Remington
7x57mmR
7x64mm Brenneke

5 more on the powder pages.

PowderN540 in full PowderURP in full HubCompare another pair

FAQs

Which burns faster, N540 or URP?: N540 is the faster-burning of the two (rank #62 vs #63 — lower rank burns faster).
What cartridges do N540 and URP both load?: Both powders are listed for .243 Winchester, .30-06 Springfield, .300 WSM, .308 Winchester, .338 Winchester Magnum, 6.5 Creedmoor, among 17 shared cartridges.