I have two BLR's in .358 Winchester and am considering rechambering the new '81 Lightweight to .350 Remington Magnum. I have been thinking about this ever since I bought the rifle earlier this year but have been holding off because of the small gain in velocity attainable, about 150-200 fps.
Today I was surfing on the accuratepowder.com web site and pulled up the reloading data on the .350 RM. I was surprised to see a velocity of 3008 fps out of a 20" barrel for the 200 grain Hornady spire point bullet with 60 grains of AA2520. The most that I can get out of my BLR and stay within pressure constraints is 2600 FPS. That's a gain of 400 fps over the .358 Winchester with the same bullet. That got my attention and renewed my interest in the conversion.
I have three questions:
1. What's the highest velocity that you have attained with your .358 Winchester and a 200 grain bullet. Please indicate load data and barrel length.
2. Same question for the .350 RM. Can you really get 3000 fps out of a 20" barrel with a 200 grain bullet and stay at or under 53,000 CUP?
3. Who is a good and reasonable gunsmith to perform the rechambering?
Thanks in advance,
NITRO
Today I was surfing on the accuratepowder.com web site and pulled up the reloading data on the .350 RM. I was surprised to see a velocity of 3008 fps out of a 20" barrel for the 200 grain Hornady spire point bullet with 60 grains of AA2520. The most that I can get out of my BLR and stay within pressure constraints is 2600 FPS. That's a gain of 400 fps over the .358 Winchester with the same bullet. That got my attention and renewed my interest in the conversion.
I have three questions:
1. What's the highest velocity that you have attained with your .358 Winchester and a 200 grain bullet. Please indicate load data and barrel length.
2. Same question for the .350 RM. Can you really get 3000 fps out of a 20" barrel with a 200 grain bullet and stay at or under 53,000 CUP?
3. Who is a good and reasonable gunsmith to perform the rechambering?
Thanks in advance,
NITRO